Download US Robotics x2/56K Operating instructions

This manual covers installation and operating instructions for the following U.S. Robotics modems:
Sportster® 56 kbps∗ internal and external modems
U.S. Robotics, the USRobotics logo, and Sportster are registered trademarks and Connections,
Total Control, Courier, RapidComm, x2, and the x2 logo are trademarks of 3Com Corporation and
its subsidiaries. Windows and Internet Explorer are registered trademarks of Microsoft Corp.
CompuServe is a registered trademark of CompuServe Inc. America Online is a registered trademark
of America Online Inc. Netscape Navigator is a trademark of Netscape Communications Corp. Any
other trademarks, trade names, or service marks used in this manual are the property of their
respective owners.
© 1997 3Com Corporation
7770 North Frontage Road
Skokie, IL 60077-2690
All Rights Reserved
∗ IMPORTANT! All x2 products are capable of 56 kbps downloads; however, due to FCC rules
which restrict power output of the service providers' modems, current download speeds are limited to
53 kbps. Actual speeds may vary depending on line conditions. Uploads from users to service
providers travel at speeds up to 28.8 kbps. An x2-capable modem, an x2-compatible analog phone
line and an x2-capable Internet Service Provider are necessary for these high-speed downloads.
Welcome to x2 Information Access
Product Features
Before You Begin (Windows 95 Users)
Internal Modem Installation with Windows 3.x
A Word about COM Ports and IRQs
How to Use ComTest to Determine Your Modem’s Settings
Testing an Installed Modem
What to Do with ComTest’s Recommendation
How to Change the Modem’s Settings
How to Insert the Modem into the Computer
Internal Modem Installation with Windows 95
Plug and Play Installation
How to Prepare for Plug and Play Installation
How to Insert the Modem into the Computer
How to Move Through the “New Hardware Found” Screens
External Modem Installation with Windows 3.x
How to Determine Which Serial Cable to Buy
How to Connect the Modem to the Computer
External Modem Installation with Windows 95
How to Determine Which Serial Cable to Buy
How to Connect the Modem to the Computer
Software Installation and Testing
Software Installation and Registration Using the Setup Wizard
Sending Your First Fax
1
3
4
5
5
7
9
10
12
14
21
21
21
23
27
31
31
32
35
35
36
43
43
58
Installing Other Fax/Data Software
Type of Modem
Initialization String
Flow Control
UART (External Modems Only)
Using Modem Station
Why Modem Station?
What Does Modem Station Do?
Installing Modem Station
Starting Modem Station
Using Detect New Modems
Using Terminal
Using Modem Configurator
Using Modem to Computer
Using the Extended Information Screens
U.S. Robotics Modem Update Wizard
Installation
Operation
Troubleshooting and Online Help Resources
Online Help Resources
Are You Still Having Problems?
If You Need to Return the Modem to Us
RapidComm Troubleshooting Tips
A Note to Users with Older Versions of RapidComm on Their Systems
61
61
61
61
62
63
63
63
63
66
69
70
73
76
80
89
89
94
101
107
111
111
112
113
Glossary
Technical Quick Reference
Front Panel Lights (External Modems)
Command Summary
DIP Switches (Modems with DIP Switches Only)
S-Registers
The Serial Interface
Regulatory Information
Manufacturer’s Declaration of Conformity
Caution to the User
IC (Canada)
UL Listing/CUL Listing
Connecting to the Telephone Company
Fax Branding
Radio and Television Interference
For Canadian Modem Users
Limited Warranty
Index
114
127
128
129
144
146
157
159
159
160
160
160
161
161
162
163
166
169
WELCOME TO X2 INFORMATION ACCESS
power output of your service provider’s
modems, current download speeds are limited
to 53 kbps. This modem is software
upgradable, allowing easy upgrades to new
features and enhancements as they become
available.
An integrated end-to-end
solution from the leader
The latest breakthrough in
online communications
Until now, 33.6 kbps was thought to be the
practical limit for speed over standard phone
lines. Now, x2™ shatters that barrier, to bring
you download speeds of up to 56 kbps.
However, due to FCC rules which restrict
U.S. Robotics is well positioned to bring you
x2 technology. Our Sportster® modems are the
world's number one seller, and our Total
ControlTM and CourierTM product lines are
favored by many Internet service providers.
This widespread acceptance allows U.S.
Robotics to offer x2 technology to virtually
anyone.
1
WELCOME TO X2 INFORMATION ACCESS
Taking advantage of the
modern telephone network
compression, x2 can download at speeds up
to a blistering 115.2 kbps.
x2 technology takes advantage of the typical
network configuration found when an analog
subscriber connects to a digitally connected
server. Because it requires no analog-to-digital
conversions in the downstream path (which
can cause line noise), x2 can use nearly all of
the available 64K network bandwidth.
(Upstream data, typically less speed sensitive,
travels at the standard V.34 rate.)
Updating x2 technology is
easy and FREE!
The result is a completely new kind of
transmission technique. Based on “encoding”
rather than “modulation,” it can give you
download speeds that you never thought
possible. What’s more, with standard V.42 bis
2
Read the section of this manual titled “U.S.
Robotics Modem Update Wizard” (page 85)
for information about using this software (on
the Connections™ CD) to update your
modem’s code to the latest version.
The new standard for online
speed
U.S. Robotics has already submitted x2 to the
ITU-T standards committee for acceptance as
the next online standard. For more information
on U.S. Robotics’ x2 technology, see our
World Wide Web page at http://x2.usr.com.
PRODUCT FEATURES
Your new x2 modem
provides many advanced
features. Here are just a
few:
Modulation Schemes
Fax Modulation
Schemes
ITU-T V.17
ITU-T V.29
ITU-T V.27ter
ITU-T V.21
x2 technology
ITU-T V.34+
ITU-T V.34
ITU-T V.32bis
ITU-T V.32
ITU-T V.22bis
ITU-T V.22
ITU-T V.23
Bell 212A
ITU-T V.21
Bell 103
Fax Standards
Error Control and Data
Compression Schemes
Back Channel Link
Rates
ITU-T V.42
ITU-T V.42bis
MNP 2-5
14400, 16800, 19200, 21600,
24000, 26400, 28800, 31200
EIA 578 Class 1 FAX
EIA 592 Class 2.0 FAX
Front Channel Link
Rates
33333, 37333, 41333, 42666,
44000, 45333, 46666, 48000,
49333, 50666, 52000, 53333,
54666, 56000, 57333
V.34+ Link Rates
4800, 7200, 9600, 12000, 14400,
16800, 19200, 21600, 24000,
26400, 28800, 31200, 33600
V.32bis Link Rates
4800, 7200, 9600, 12000, 14400
Additional Link Rates
300, 1200/75 (V.23), 1200, 2400
Fax Link Rates
2400, 4800, 7200, 9600, 12000,
14400
3
BEFORE YOU BEGIN (WINDOWS 95 USERS)
Your Sportster modem is a Plug and Play
device. Windows 95 can automatically identify
a Plug and Play device and determine if your
system has the resources necessary to support
the device. However, Plug and Play will not
work if you do not have resources available or
if devices on your system are not reporting
resource usage correctly. Here’s how you can
verify that your system has the necessary
resources before installing the modem.
1. Click the Windows 95 Start button, point
to Settings, and then click Control Panel.
2. Double-click the System icon.
3. When the “System Properties” screen
appears, click the Device Manager tab.
4. Double-click Computer and the
“Computer Properties” screen appears.
4
Select the option at the top of the screen to
show Interrupt Requests (IRQs).
You will see the IRQs your system is currently
using. If IRQs 3, 4, 5, and 7 are being used,
you need to free an IRQ before you begin
installation. This process involves moving a
device from the IRQ you want to use to a
different (and unusually higher) IRQ setting.
Please read the documentation for (or contact
the manufacturer of) the device that is currently
using the IRQ you want to use for your modem
to learn more about what you should do to free
the IRQ for your modem.
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
You’ll need these items from your
Sportster modem box:
modem
Connections CD
Plus:
a screwdriver (not included)
phone cord
A Word about COM Ports
and IRQs
Most computer accessories — a mouse,
sound card, enhanced graphics card, scanner,
etc. — require a special connection through
which they can communicate with the
computer. For some devices, this connection is
called a communications (or COM) port. Most
computers have 1 or 2 COM ports, but they
can have up to 4. Although internal modems
do not connect to COM ports directly, they do
require a COM port setting, which is
determined by the setting on the modem’s
COM jumper pins.
Each COM port uses an interrupt request
(IRQ). An accessory uses an IRQ to get the
attention of your computer’s central processing
unit (CPU) so that the accessory can perform
5
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
a task. The computer stops what it’s doing,
depending on the priority of the request, to
help the accessory perform its task. When two
accessories share an IRQ, it’s like two people
asking different questions in unison to a third
person. Just as the person being asked the two
questions cannot understand either request, a
computer can lock up or otherwise fail to
communicate properly with your modem when
there is an IRQ conflict.
U.S. Robotics has set your modem to a default
Plug and Play setting geared towards
Windows 95 users. In this configuration, the
shunts used to set your modem’s COM port
and IRQ settings are hanging from single
jumper pins and will not affect your modem’s
settings. As a Windows 3.x user, you need to
run the ComTest program (on the
Connections CD) to determine what settings
your modem should use.
D KEY POINT: Accessories cannot
share COM ports and should not share
IRQs. When accessories try to share
settings, they will either not work
properly or not work at all. This section
of the manual will help you understand
the COM/IRQ settings on your new
Sportster modem.
6
NOTE: Some communications
software programs require a particular
setting for your modem (RapidComm,
which shipped with your modem, does
not). If you wish to use a program other
than RapidComm, now is a good time to
read that software’s manual to
determine what setting is required.
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
How to Use ComTest to
Determine Your Modem’s
Settings
1. Insert the Connections CD into your CDROM drive.
COM and IRQ settings the older modem is
using.
• If a modem is not currently installed in your
computer, click Recommend settings for
a new modem.
2. In Windows’ Program Manager, click Run
on the File menu. Type d:\comtest.exe
and press ENTER. This starts ComTest,
the program that determines which COM
ports and IRQs are available for use by
your modem.
3. The screen in the next column appears
when ComTest starts.
Then click Next.
• If there is a modem in your computer which
you are replacing with your new Sportster
modem, go to “Testing an Installed
Modem” on page 9 to determine which
7
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
4. Click Internal Modem. Then click Next.
COM2/IRQ3 is free in this example.
ComTest might instead recommend
COM1/IRQ4, COM3/IRQ4, or
COM4/IRQ3 for your modem.
Write down the displayed settings in the
spaces provided on the first page of this
manual. You’ll need to know these settings
later. Click Next.
5. If you have a free setting, you will see a
screen like this.
If you do not have a free setting, you will
see a screen like this.
8
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
Click Finish to exit ComTest. Go to “What
to Do with ComTest’s Recommendation”
on page 10.
6. When you see this screen, click Finish to
exit ComTest.
Go to “What to Do with ComTest’s
Recommendation” on page 10.
Testing an Installed Modem
If there is a modem already installed in your
computer, you can determine its COM and
IRQ settings by selecting the Test an installed
modem option. Follow the instructions on
screen until you see the screen that tells you
“Testing is complete.” This screen will also tell
you which COM and IRQ settings your
present modem is using. These are the settings
you want to use for your new Sportster
modem. Write the settings down in the spaces
provided on the first page of this manual.
Turn off and unplug your computer and
remove your present modem. Go to “How to
Change the Modem’s Settings” on page 12.
9
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
What to Do with ComTest’s
Recommendation
NOTE: If your communications
software requires a modem that
ComTest does not recommend, there is
a good chance that the setting is being
used by another device in your system.
To free that setting in your system,
consult your computer’s manual. Go to
“How to Change the Modem’s Settings”
on page 12.
If ComTest recommended COM1/IRQ4
Write “COM1” and “IRQ4” in the spaces
provided on the first page of this manual. Go to
“How to Change the Modem’s Settings” on
page 12.
10
If ComTest recommended COM2/IRQ3
Write “COM2” and “IRQ3” in the spaces
provided on the first page of this manual. Go to
“How to Change the Modem’s Settings” on
page 12.
If ComTest recommended COM3/IRQ4
or COM4/IRQ3
Do not use either of these settings. While the
COM port part of the setting is acceptable
(ComTest only recommends COM ports that
are not being used), the IRQ part of the setting
is not acceptable. When ComTest
recommends either COM3/IRQ4 or
COM4/IRQ3, the IRQ in the setting is being
used by another accessory. You could use the
suggested IRQ for the modem, but you run the
risk that the modem and/or the other accessory
sharing the IRQ might not work properly.
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
If you do not have a sound card, use
COM3/IRQ5. Write “COM3” and “IRQ5”
in the spaces provided on the first page of
this manual. You will have to change the
settings on your modem. Go to “How to
Change the Modem’s Settings” on page 12.
into that port will not work after the port
has been disabled.
• Find out how to disable the COM port.
• Then return to this point in this manual to
continue.
After disabling COM2, you can use the
COM2/IRQ3 setting.
If you do have a sound card, use
COM2/IRQ3. To use this setting, you have to
first disable your computer’s second serial port
(COM2). This is a pronged socket on the
back of your computer.
Write “COM2” and “IRQ3” on the first page
of this manual and go to “How to Change the
Modem’s Settings” on page 12.
• Go to your computer manufacturer’s
manual.
• Find out which of the sockets on the back
of your computer is the second serial port.
• If you have something plugged into that
port, find out if you can plug it in
somewhere else. Any accessory plugged
If ComTest reports that You do not have
any available COM ports and/or IRQs
We recommend you disable COM1 or
COM2. When you disable one of these COM
ports, you can use it and its default IRQ for
your modem. Go to your computer
manufacturer’s manual.
11
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
• Find out which socket is COM1 and which
is COM2.
• If nothing is plugged into either port, you
can choose either of the ports to disable.
Your computer manufacturer’s manual will
tell you how to disable the COM port.
• If one port does not have anything plugged
into it, note if the port is COM1 or COM2.
This is the port you’ll want to disable for
your modem.
• If both ports are being used, you may be
able to attach one of the plugged-in
accessories elsewhere so that you can
disable its COM port. The accessory will
not work once its port is disabled.
If you’ve disabled COM1, you can now use
the COM1/IRQ4 setting. Write it down on the
first page of this manual. Go to “How to
Change the Modem’s Settings” (on this page).
12
If you’ve disabled COM2, you can now use
the COM2/IRQ3 setting. Write the setting
down on the first page of this manual.
How to Change the Modem’s
Settings
1. Always touch an unpainted metal part of
your computer (the back is usually
unpainted) to discharge static electricity
before handling the modem. Static can
damage your modem. Then take the
modem out of its plastic bag.
2. Find the COM and IRQ jumper shunts
(small black plastic pieces) on your
modem’s jumper pins (see the following
diagram).
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
3. To change the COM port and IRQ settings,
you need to reposition the jumper shunts on
the COM port and IRQ pins. To do this, lift
the jumper shunts off the pins.
TIP: Grasp the jumper shunts with
The jumper shunts will be hanging from
single jumper pins as shown in the following
illustration.
a tweezers or needle-nosed pliers. DO
NOT grasp too firmly, as you may crush
the shunts. If a jumper shunt seems
stuck, gently rock it back and forth as
you lift. Do not touch any other part of
the modem or your computer with the
tweezers/pliers. A shunt needs to be
sitting on both jumper pins in order to
effectively set the modem to the
desired setting.
13
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
4. Move the jumper shunt to the new setting.
• The COM port setting can involve one to
three shunts. The four possible COM port
settings are as follows:
0
0
1
1
SE
L
COM 1
SE
L
COM 2
0
0
1
1
SE
L
COM 3
SE
L
COM 4
• Unlike most COM port settings, the IRQ
setting involves only one jumper shunt.
Simply move the jumper shunt to the pins
labeled with the IRQ you need.
14
How to Insert the Modem
into the Computer
NOTE: Before installing your
modem, write its serial number in the
space provided on the first page of
this manual. (You’ll find the serial
number underneath the bar code on
the white sticker on the modem and on
the outside of the box the modem
came in.) If you ever need to call our
customer support department, a
customer support representative will
ask you for the serial number. This
will help him or her identify your
modem.
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
1. Turn off your computer and unplug it from
the electrical outlet.
2. Unplug any peripheral devices (printer,
monitor, keyboard, mouse, etc.) from the
computer.
TIP: Before you unplug anything,
label the cords or make a sketch of how
things are connected. This can be
helpful when you plug things back in
later.
3. Remove the screws from your computer’s
cover and then remove the cover, as shown
in the following diagrams. Your computer
may differ in appearance from these
diagrams, but the basic principle for
removing the cover should be the same.
Contact your computer manufacturer or
review their manual if you need further
instructions.
CAUTION : To avoid the risk of
electric shock, make sure your computer
and all peripheral devices are turned off
and unplugged.
15
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
4. Find an empty ISA expansion slot at least
as long as the gold edge of your modem.
(ISA slots have black plastic grooves lined
with silver.) Unscrew and remove the
expansion slot cover (the long narrow piece
of metal that keeps dust from entering
through the opening perpendicular to the
slot). Be careful not to drop the screw into
the computer. You will need it later to
screw the modem into place.
16
5. Holding the modem at each corner, with the
gold edge facing the slot, push the modem
down as gently as possible until it snaps into
the expansion slot. (NOTE: The drawings
show horizontally aligned expansion slots.
Some computers have vertically aligned
slots. The instructions apply to both styles.)
You need to apply a little pressure to seat
the modem properly. Sometimes a gentle
back-and-forth motion helps to fit the
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
modem all the way into the slot. If you feel
resistance, the modem may not be properly
lined up with the slot. Do not force it into
the slot. Remove the modem and try again.
7. Replace the computer’s cover and fasten it
with the screws you removed in step 3.
8. If you currently have a phone plugged into
the wall jack you plan to use for the
modem, disconnect the phone’s cord from
the jack.
WARNING : The phone jack you
use must be for an ANALOG phone line
(the type found in most homes). Many
office buildings have digital phone
lines. Be sure you know which type of
line you have. The modem will be
damaged if you use a digital phone line.
6. Once the modem is in place, fasten it firmly
into place using the screw that you removed
in step 4.
9. Plug one end of the phone cord that came
with the modem into the TELCO jack at
the rear of the modem. Plug the other end
of the cord into the wall jack.
17
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
10.If you wish to use a phone through the
same phone wall jack as the modem when
the modem is not in use, plug your phone’s
cord into the modem’s PHONE jack.
12.Start Windows.
13.If you have your modem set to
COM1/IRQ4 or COM2/IRQ3, go to
“Software Installation and Testing” on page
43. If you have your modem configured to
any other setting, open Program Manager
and double-click the Main icon.
NOTE: You cannot use the modem
and a phone at the same time if they
share the same telephone line.
11. Plug the power cords, cables, and
peripherals back into the computer and turn
the computer on.
18
14.Double-click the Control Panel icon.
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
15.Double-click the Ports icon.
16.If it’s not already selected, click the COM
port for your modem. Then click Settings.
19
INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
17. Click Advanced.
19.Click OK.
18.In the Interrupt Request Line (IRQ)
box, select the IRQ that ComTest
recommended.
You will see a brief series of screens after the
preceding screen. Click OK on each screen
until you see a screen with a Close button.
Click Close to exit Program Manager.
You are now ready to install the software on
the Connections CD-ROM (included with
your Sportster modem). Turn to “Software
Installation and Testing” (page 43) for detailed
information about installing the software,
registering the modem, and trying out your
modem by faxing U.S. Robotics.
20
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
You’ll need these items from your
Sportster modem box:
modem
Connections CD
Plus:
a screwdriver (not included)
phone cord
Plug and Play Installation
With Windows 95, you may be able to simply
plug your new modem into your computer,
power up, and be ready to work. The
operating system should do all the work of
recognizing the modem for you. This section
will guide you through this “Plug and Play”
installation.
How to Prepare for Plug and
Play Installation
1. Touch an unpainted metal part of your
computer (the back is usually unpainted) to
discharge static electricity. Static can
damage your modem.
2. Take the modem out of its plastic bag.
21
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
3. Find the jumper shunts (small black plastic
pieces) on the COM port and IRQ jumper
pins on your modem. They should be in
roughly the area indicated in the following
illustration.
move them so they are hanging as in the
following diagram.
NOTE: If you need to move the
When doing a “Plug and Play” installation,
the jumper shunts should be placed so that
they are hanging from single jumper pins
rather than on pairs of pins. Your modem’s
jumper shunts should already be in this Plug
and Play configuration. If they are not,
22
shunts, grasp them with a tweezers or a
needle-nosed pliers. DO NOT grasp too
firmly, however, or you may crush the
shunts. If a shunt seems stuck, try
gently rocking it back and forth as you
lift.
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
How to Insert the Modem
into the Computer
NOTE: Before installing your
modem, write its serial number in the
space provided on the first page of
this manual. (You’ll find the serial
number underneath the bar code on
the white sticker on the modem and on
the outside of the box the modem
came in.) If you ever need to call our
customer support department, a
customer support representative will
ask you for the serial number. This
will help him or her identify your
Sportster modem.
1. Turn off your computer and unplug it from
the electrical outlet.
2. Unplug any peripheral devices (printer,
monitor, keyboard, mouse, etc.) from the
computer.
TIP: Before you unplug anything,
label the cords or make a sketch of how
things are connected. This can be
helpful when you plug things back in
later.
CAUTION : To avoid risk of
electric shock, make sure your computer
and all peripheral devices are turned off
and unplugged from electrical outlets.
23
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
3. Remove the screws from your computer’s
cover and then remove the cover, as shown
in the following diagrams. Your computer
may differ in appearance from these
diagrams, but the basic principle for
removing the cover should be the same.
Contact your computer manufacturer or
review their manual if you need further
instructions.
24
4. Find an empty ISA expansion slot that’s at
least as long as the gold edge of your
modem. (ISA slots are black plastic
grooves lined with silver.) Unscrew and
remove the expansion slot cover (the long
narrow piece of metal that keeps dust from
entering through the opening perpendicular
to the slot). Be careful not to drop the
screw into the computer. You will need it
later to screw the modem into place.
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
5. Holding the modem at each corner, with the
gold edge facing the slot, push the modem
down as gently as possible until it snaps into
the expansion slot. (Note: The following
diagram shows horizontally aligned
expansion slots. Some computers have
vertically aligned slots. The instructions
apply to both styles.)
You need to apply a little pressure to seat
the modem properly. Sometimes a gentle
back-and-forth motion helps fit the modem
all the way into the slot. If you feel
resistance, the modem may not be properly
lined up with the slot. Do not force it into
the slot. Remove the modem and try again.
6. Once the modem is in the slot, screw the
modem firmly into place using the screw
that you removed in step 4.
7. Replace the computer’s cover and fasten it
with the screws you removed in step 3.
8. Locate the wall jack you plan to use for the
modem. If you have a phone plugged into
25
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
this jack, disconnect the phone’s cord from
the jack.
WARNING : The phone jack you
use must be for an ANALOG phone line
(the type found in most homes). Many
office buildings have digital phone
lines. Be sure you know which type of
line you have. The modem will be
damaged if you use a digital phone line.
9. Plug one end of the phone cord included
with the modem into the TELCO jack at
the rear of the modem. Plug the other end
of the cable into the wall jack.
10.If you wish to use a phone through the
same phone wall jack as the modem when
the modem is not in use, plug your phone’s
cord into the modem’s PHONE jack.
26
NOTE: You cannot use the modem
and a phone at the same time if they
share the same telephone line.
11. Plug the power cords, cables, and
peripherals back into the computer and turn
the computer on.
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
How to Move Through the
“New Hardware Found ”
Screens
1. When Windows 95 restarts, the following
screen appears automatically after a few
seconds.
2. When you see this screen, insert the
Connections CD into your CD-ROM
drive and type D:\ to replace the A:\.
(NOTE: If your CD-ROM drive has a
different letter name, type that letter instead
of D.)
Click OK. Windows will load the modem’s
setup information.
Click Driver from disk provided by
hardware manufacturer. Then click OK.
27
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
3. Once Windows 95 finishes loading the
information from the CD-ROM, you should
verify that the modem installation was a
success. When your desktop returns, click
the Windows’ Start button and then point
to Settings. Then click Control Panel.
28
4. Double-click the Modems icon (circled in
the screen image below).
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
5. In the “Modems Properties” screen, you
should see “Sportster 56000 Fax Internal
PnP” listed.
NOTE: If you do not see your
modem listed in the preceding
screen, the installation was
unsuccessful. Please refer to the
“Troubleshooting and Online Help
Resources” section (page 81) for
possible solutions to your
installation problem.
6. Next, click the Diagnostics tab at the top
of the “Modems Properties” screen. Write
down the COM setting for your modem.
(Note: Your screen may show a different
setting than that shown in the following
screen.) You will need to know this setting
when you install RapidComm later.
This means the installation was a success.
Click OK.
29
INTERNAL MODEM INSTALLATION WITH WINDOWS 95
Turn to “Software Installation and Testing”
(page 43) for detailed information about
installing RapidComm, registering the
modem, and trying out your modem by
faxing U.S. Robotics.
30
EXTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
You’ll need these items from your
Sportster modem box:
modem
Connections CD
phone cord
How to Determine Which
Serial Cable to Buy
Before you can begin installation, you need to
purchase an RS-232 serial modem cable. This
section will help you to determine which serial
modem cable to purchase.
power adapter
NOTE: Your computer’s rear panel
Plus:
Serial modem cable. (Not included. See next
column.)
may not be identical to the following
diagrams. However, you should look for
connectors that match the enlarged
portions of the diagrams. If you cannot
locate the proper connector, refer to
your computer’s manual.
31
EXTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
If your PC's serial connector looks like this…
you need a shielded serial modem cable with a
25-pin female to 25-pin male connector.
If your PC's serial connector looks like this…
you need a shielded serial modem cable with a
9-pin female to 25-pin male connector.
32
How to Connect the Modem
to the Computer
1. Turn off your computer and any attached
devices, such as a printer.
2. Connect the serial cable to the modem and
to the computer. When looking for the
serial port label on the back of your
computer, look for ports labeled COM,
MODEM, RS-232, or SERIAL. DO
NOT select AUX, GAME, LPT, or
PARALLEL.
3. Plug the power adapter into the a standard
wall outlet and insert its plug into the power
jack on the modem (labeled with a power
adapter icon on the bottom of the case).
4.
Plug one end of the phone cord into the
TELCO jack (labeled with a wall plug icon
EXTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
on the bottom of the case) and the other
end into a phone wall jack.
WARNING : The phone jack you
NOTE: You cannot use the modem
and a phone at the same time if they
share the same telephone line.
use must be for an ANALOG phone line
(the type found in most homes). Many
office buildings have digital phone
lines. Be sure you know which type of
line you have. The modem will be
damaged if you use a digital phone line.
5.
If you wish to use your modem and phone
through the same phone wall jack, plug
your phone's cord into the modem's phone
jack (labeled with a phone icon on the
bottom of the case).
6.
Turn your modem on. Then turn your
computer on.
33
EXTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
You are now ready to install the software
on the Connections CD-ROM (included
with your Sportster modem). Turn to
“Software Installation and Testing” (page
43) for detailed information about installing
34
the software, registering the modem, and
trying out your modem by faxing U.S.
Robotics.
EXTERNAL MODEM INSTALLATION WITH WINDOWS 35
95
You’ll need these items from your
Sportster modem box:
modem
Connections CD
phone cord
Before you can begin installation, you need to
purchase an RS-232 serial modem cable. This
section will help you to determine which serial
modem cable to purchase.
power adapter
Plus:
Serial modem cable. (Not included. See next
column.)
How to Determine Which
Serial Cable to Buy
NOTE: Your computer’s rear panel
may not be identical to the following
diagrams. However, you should look for
connectors that match the enlarged
portions of the diagrams. If you cannot
locate the proper connector, refer to
your computer’s manual.
35
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
If your PC's serial connector looks like this…
How to Connect the Modem
to the Computer
you need a shielded serial modem cable with a
25-pin female to 25-pin male connector.
If your PC's serial connector looks like this…
1. Turn off your computer and any attached
devices, such as a printer.
2. Connect the serial cable to the modem and
to the computer. When looking for the
serial port on the back of your computer,
look for labels marked COM, MODEM,
RS-232, or SERIAL. DO NOT select
AUX, GAME, LPT, or PARALLEL.
3. Plug the power adapter into a standard wall
outlet and insert its plug into the power jack
on the modem (labeled with a power
adapter icon on the bottom of the case).
you need a shielded serial modem cable with a
9-pin female to 25-pin male connector.
4. Plug one end of the phone cord into the
TELCO jack (labeled with a wall plug icon
on the bottom of the case) and the other
end into a phone wall jack.
36
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
WARNING : The phone jack you
use must be for an ANALOG phone line
(the type found in most homes). Many
office buildings have digital phone
lines. Be sure you know which type of
line you have. The modem will be
damaged if you use a digital phone line.
5. If you wish to use your modem and phone
through the same phone wall jack, plug
your phone's cord into the modem's phone
jack (labeled with a phone icon on the
bottom of the case
NOTE: You can not use the modem
and phone at the same time if they
share the same telephone line.
6. Turn on your modem (the power switch is
located on the front panel). Then turn on
your computer and peripherals.
How to Move Through the
“New Hardware Found ”
Screens
37
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
1. When Windows restarts, the following
screen appears automatically after a few
seconds.
different letter name, type that letter instead
of D.)
Click OK. Windows will load the modem’s
setup information.
Click Driver from disk provided by
hardware manufacturer. Then click OK.
2. When you see this screen, insert the
Connections CD into your CD-ROM
drive and type D:\ to replace the A:\.
(NOTE: If your CD-ROM drive has a
38
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
3. Once Windows finishes loading the
information from the CD-ROM, you should
verify that the modem installation was a
success. When your desktop returns, click
the Windows Start button and point to
Settings. Then click Control Panel.
4. Double-click the Modems icon (circled in
the screen image below).
39
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
5. In the “Modems Properties” screen, you
should see “Sportster 56000 Fax External
PnP” listed.
NOTE: If you do not see your
modem listed in the preceding
screen, the installation was
unsuccessful. Please refer to the
“Troubleshooting and Online Help
Resources” section (page 81) for
possible solutions to your
installation problem.
6. Next, click the Diagnostics tab at the top
of the “Modems Properties” screen. Write
down the COM setting for your modem.
(Note: Your screen may show a different
setting than that shown in the following
screen.) You will need to know this setting
when you install RapidComm later.
This means the installation was a success.
Click OK.
40
EXTERNAL MODEM INSTALLATION WITH WINDOWS 95
Turn to “Software Installation and Testing”
(page 43) for detailed information about
installing the software, registering the
modem, and trying out your modem by
faxing U.S. Robotics.
41
SOFTWARE INSTALLATION AND TESTING
Software Installation and
Registration Using the
Setup Wizard
This section guides you through the U.S.
Robotics Setup Wizard, the Connections™
CD-ROM interface, and the installation of
RapidComm™ (fax/data software). It also
shows you how to register and test your new
Sportster modem.
RapidComm fax/data software simplifies
sending and receiving faxes directly from your
computer desktop. You can build your own
fax directory, send faxes to specified groups of
phone numbers, request individual cover pages
when necessary, and send individual faxes
without exiting your word processing program.
42
Additionally, RapidComm lets you connect to
BBSs and other online data providers. Take
advantage of this access to enter a new world
of information and entertainment.
NOTE: The following instructions
apply to Windows 3.x and Windows 95
users. However, only Windows 95
screens are shown.
NOTE: If you have an older
version of RapidComm installed on your
system, uninstall it before continuing.
SOFTWARE INSTALLATION AND TESTING
1. From the Windows 95 desktop, click the
Start button and then click Run.
3. You will briefly see a screen that looks like
this.
4. When you are asked if you wish to run the
Setup Wizard, click Yes.
2. In the text box, type D:\setup.exe. (If your
CD-ROM drive has a letter name other
than D, type that letter in place of D.)
43
SOFTWARE INSTALLATION AND TESTING
5. This is the Setup Wizard’s “Welcome”
screen. After reading the screen, click
Next.
6. When you see the following screen, select
your modem from the list, verify that the
COM port setting is correct, and then click
Next.
NOTE: Check the COM port
setting against the setting you wrote
down during the hardware installation.
44
SOFTWARE INSTALLATION AND TESTING
7. When you see the next two screens, fill in
the blank boxes with the appropriate
information, using the TAB key to move
between fields. Click Next on each screen
when you have filled in all of the necessary
information.
45
SOFTWARE INSTALLATION AND TESTING
8. You will see the following screen as the
Setup Wizard creates a U.S. Robotics
Connections program group.
9. Next, the Setup Wizard looks for Netscape
Navigator on your system.
If the Setup Wizard does not find Netscape
Navigator, it searches for Microsoft’s
Internet Explorer. If the Setup Wizard does
not find Internet Explorer, it will
automatically install the application later in
the Setup Wizard process.
46
10.The next screen introduces the U.S.
Robotics Registration Wizard. After you
read the screen, click Next. Read through
each of the next two screens and verify or
correct the information you typed earlier.
Click Next on each screen to move on.
SOFTWARE INSTALLATION AND TESTING
11. When you see this screen, you are ready to
register your new modem. Click By
Modem. We recommend you choose the
By Modem option because it’s a great
way to verify that your Sportster modem is
correctly installed.
47
SOFTWARE INSTALLATION AND TESTING
12.When you see this screen…
• If you need to dial a prefix (such as 9) to
make a call outside your building, type
the prefix before the 1 in the Prefix box
and then click Dial. If the modem still
does not dial the number properly, you
may need to insert a comma between the
prefix and the 1 to force the modem to
pause after dialing the prefix.
48
• If you do not need to dial a prefix,
simply click Dial.
13.You will see a screen indicating that the
registration information has been sent (see
circled text in the screen below).
14.The next screen indicates that the Setup
Wizard is finished. Click OK to launch the
Connections CD-ROM.
SOFTWARE INSTALLATION AND TESTING
NOTE: If the Setup Wizard detected
Internet Explorer on your system during the
setup process, your computer will launch
the Connections CD-ROM when you click
OK. Continue at step 15.
If the Setup Wizard DID NOT detect
Internet Explorer on your system earlier in
the setup process, it will launch the Internet
Explorer installation utility after you click
OK. When you see the following screen,
click Install Internet Explorer and follow
the on-screen instructions to complete the
installation of the software.
At the end of the installation process, you
will see the following screen. Click Yes.
Windows 95 users: Windows will restart
and the Connections CD will launch
automatically upon restart.
49
SOFTWARE INSTALLATION AND TESTING
Windows 3.x users: Windows will
restart. When your desktop reappears, you
will see a Connections icon (shown below)
in the Connections program group.
Double-click the icon to launch the CD.
50
15.When the main Connections menu
appears, click Business & Productivity
on the left hand side of the screen (circled
below).
SOFTWARE INSTALLATION AND TESTING
16.On the Business & Productivity menu is
a RapidComm button (circled in the
following screen shot). RapidComm is the
fax/data software you can use to send faxes
directly from your desktop, transfer files
electronically, or dial into a BBS. Click
RapidComm.
17. The next screen contains a menu on the
right hand side of the screen. Included on
the menu is a Learn More & Get
Software button (circled in the screen
image below). Click this button.
51
SOFTWARE INSTALLATION AND TESTING
18.The next screen displays information about
RapidComm. When you are ready to install
RapidComm, click Install (circled in the
lower left hand corner of the following
screen image).
NOTE: If you are using Netscape
Navigator to view your Connections CDROM, you may be asked to save the
application’s installer to your computer
when you click the Install button. Note
the installer’s file name and its location
on your computer. To run the installer
or demo, find the file on your computer
and double-click it. The installer will
start.
19.The next screen is the first of the
“RapidComm Setup” screens. When this
screen appears, make sure the location
shown in the text box is where you would
like the files copied to and then click
Install. If you wish to copy the
RapidComm files to a different directory,
52
SOFTWARE INSTALLATION AND TESTING
type that location in the text box before
clicking Install.
21.When you see this screen, click either Yes
or No.
20.You will see this screen as files are copied.
• If you click Yes, every document you
print will be treated as a fax unless you
change the printer selection in the
program from which you are printing.
• If you click No, RapidComm will not be
selected as the default printer. When you
want to send a fax, you must select
53
SOFTWARE INSTALLATION AND TESTING
RapidComm as the printer in the
program from which you are printing.
22.This screen marks the end of the
RapidComm installation. Click OK.
23.Click OK to return to Connections. Click
Exit (circled in the following screen image).
54
SOFTWARE INSTALLATION AND TESTING
24.Restart Windows by clicking the Windows
Start button and pointing to Shut Down.
Click Restart the Computer? on the Shut
Down Windows screen. Then click Yes.
26.The following is the first RapidComm
Setup Wizard screen. After you read the
screen, click Next.
25.When your desktop appears, click
Windows Start. Point to Programs. Then
click RapidComm.
55
SOFTWARE INSTALLATION AND TESTING
27.When you see this screen, verify the
information shown and then fill in the Data
box (if you have a third phone number just
for your modem) and the Local Area
Code box. Then click Next.
56
28.After you verify the information on this
screen, click Next.
SOFTWARE INSTALLATION AND TESTING
29.Select the correct modem in the text box
on the following screen. Then click Next.
30.When you see this screen…
• If you want RapidComm to launch with
every Windows startup, select the Run
RapidComm at Windows startup
check box. Then click Finish.
• If you do not want RapidComm to start
every time you start Windows, simply
click Finish.
57
SOFTWARE INSTALLATION AND TESTING
31.You will see this screen.
This is the main RapidComm screen. To
send your first fax, keep this screen open.
(After this initial run, RapidComm will not
need to be running in order to send a fax.)
58
Sending Your First Fax
Using RapidComm, you can send and receive
faxes directly from your computer and
eliminate the need for an expensive fax
machine. Once you learn the basics of sending
faxes, you can learn more involved fax
functions, such as sending documents to
groups of numbers at assigned times and how
to transfer data files. These more advanced
functions are explained in the electronic
RapidComm manual on your Connections
CD. This chapter will walk you through
sending your first fax.
1. Open an application in which you can
create documents that you might want to
fax (e.g. a word processing application).
Create a document containing only a
SOFTWARE INSTALLATION AND TESTING
sentence or two. Name the document
tester. Keep the document open.
For testing purposes, send your “tester”
document to the U.S. Robotics fax number,
847-676-3559.
NOTE: If you need to enter a
prefix (such as 9) to dial a number
outside your building, type the prefix
before the fax number in the Fax
number field.
2. From the File menu, click Print.
3. Select RapidComm as the printer. This can
be changed in most Windows applications
in the Print dialog box.
4. Click OK or Print (whichever button you
click in your application to indicate that you
are ready to print) in the Print dialog box.
5. When you see the following screen, fill in
the necessary information in the text boxes.
59
SOFTWARE INSTALLATION AND TESTING
When you finish, click Send Fax.
6. You will see a series of screens as the fax is
being transmitted. When the fax has been
successfully transmitted, you will see a
screen that looks like this.
60
Congratulations —you are
now ready to start using
your Sportster modem!
Go to the electronic RapidComm manual on
your Connections CD for more detailed
instructions on sending faxes and other things
you can do using your Sportster modem and
RapidComm.
INSTALLING OTHER FAX/DATA SOFTWARE
You do not have to use the RapidComm
fax/data software included with your new
Sportster modem. Your modem was designed
for and tested using a wide range of
communications software packages. This
section will guide you through some of the
details you may need to know when installing
other communications software packages.
D KEY POINT:
Type of Modem
For hardware flow control, a fixed serial port
rate and full result codes type AT&F1 and
then press ENTER.
If you must use software flow control, type
AT&F2 and then press ENTER.
Most communications software programs will
ask you to select the type of modem you are
using. Select a U.S. Robotics Sportster high
speed modem. If that selection is not listed,
pick Courier Dual Standard, V.32bis, or V.
34.
Refer to the manual
that came with your software for its
installation instructions. The
software’s installation program will ask
you questions about the modem you are
using.
Initialization String
Flow Control
• For hardware flow control (highly
recommended), select RTS/CTS.
61
I NSTALLING O THER FAX/DATA S OFTWARE
• For software flow control, select
XON/XOFF.
NOTE: You may need to disable
serial rate in any communications software you
use.
If this is your UART...
Select this
serial rate
the flow control (hardware or software)
that you are not using.
16550*
115.2 or
57.6 kbps
UART (External Modems)
16450
38.4 kbps
8250
19.2 kbps
If you are running Windows 3.x or you have
upgraded your system from Windows 3.x to
Windows 95, you can run MSD to determine
your UART setting. In DOS, type MSD at the
Windows directory prompt and then press
ENTER. Follow the on-screen instructions to
access the COM port settings panel. In this
panel you should find the UART chip used.
Match the UART type listed in MSD with the
serial rate listed in the chart below. Select this
62
*All Sportster internal modems have a 16550 UART.
NOTE: DO NOT select a 28,800,
14,400, or 12,000 bps serial port rate, if
offered. Your modem will NOT work
correctly with any of these settings. Fix
or lock the serial port (baud) rate (if it’s
referred to as autobaud, select OFF).
USING MODEM STATION
What Does Modem Station
Do?
♦ Modem Station provides a simple to use
interface that takes the pain out of
communicating with your modem.
♦ Modem Station allows you to point and
click your way through configuration.
♦ Modem Station can automatically detect
your modem and provide you with all the
technical information you need, whenever
you need it!
Why Modem Station?
♦ Modem commands can be confusing and
difficult to memorize.
♦ Communications software often needs
technical information about your modem.
♦ You may want to “tweak” your modem for
optimum performance.
♦ You’d rather be surfing the Internet.
Installing Modem Station
If you did not install Modem Station when you
first installed the Connections CD, please
follow these instructions.
1. Insert the Connections CD into your CDROM drive.
2. Double-click the My Computer icon on
your desktop.
3. Double-click the CD-ROM icon.
4. Double-click the USR Tools folder.
5. Double-click the umssetup icon.
63
USING MODEM STATION
6. You will be asked whether you wish to
install Modem Station. Click Yes.
7. Wait a few moments for the Installation
Wizard to load.
8. After reading the information on the
“Welcome” screen, click Next.
64
9. When you see this screen, click Next to
accept the default directory or click
Browse to change directories.
USING MODEM STATION
10.Click Next on the following screen to
accept the default program folder. You can
place Modem Station in an existing folder
by selecting one from the list.
11. When you see the following screen, click
Finish to complete the installation.
If this is the first time you’ve installed
Modem Station, you may be asked to
restart your computer.
65
USING MODEM STATION
Starting Modem Station
1. If you didn’t start Modem Station from the
Setup program, please start it now.
2. Click Windows Start button and then point
to Programs. Click U.S. Robotics
Modem Station (or the folder you
selected during installation).
3. Double-click the Modem Station icon.
This brings up the main menu.
66
USING MODEM STATION
The main menu gives you direct access to
the following options:
♦
♦
♦
♦
♦
DETECT NEW MODEMS
TERMINAL
MODEM CONFIGURATOR
ABOUT
CONTACT/SUPPORT
DETECT NEW MODEMS
This option detects US Robotics modems
installed on your system and shows what
COM port they are using. Click this option if
you are running Modem Station for the first
time, if you are changing modems, or if you
simply need to know what port your modem is
using.
TERMINAL
Terminal allows you to send commands
directly to your modem and displays the
responses. You can use Terminal to dial up
BBSs. In addition, you can configure your
modem using Terminal. However, it is much
easier to use the Modem Configurator.
MODEM CONFIGURATOR
Modem Configurator provides an easy-to-use
interface for entering hard to remember
commands. Use Modem Configurator for
troubleshooting, initial configuration, and tuning
your modem for optimum performance. Using
the options available in Modem Configurator,
you can control nearly every aspect of your
modem’s performance. We will discuss
Modem Configurator’s options in more detail
in later sections.
ABOUT
The About option provides copyright and
version information.
67
USING MODEM STATION
CONTACT/SUPPORT
This option details how to get in touch with
U.S. Robotics.
TIP: For your convenience, we
provide many on-line support
avenues. For specific questions,
our fax-on-demand service is a
good place to start. You can
download FAQs, software, and help
files from our Web sites and BBS,
or receive individualized support
via [email protected]. Type 0000 (4
zeroes) in the subject line of your
e-mail.
68
USING MODEM STATION
Using Detect New Modems
1. Click Detect New Modems to bring up
the following screen.
2. Click Scan to have Modem Station check
for installed modems. This may take a few
moments.
3. When the scan finishes, you will see the
following display. Your display may differ
depending on the type and number of
modems installed.
The screen consists of four columns, one for
each possible COM port on a PC. You
can scan a specific port(s) by selecting the
checkbox for that port.
69
USING MODEM STATION
If your modem is installed and configured
correctly, Modem Station will find the
modem and display make and model
information under the assigned port. All
currently active ports should display “Port
OK” under the heading. If a port displays a
“Port Error”, it usually means that the port is
disabled in system setup.
If you look at the information for the port your
modem is using, you will see three buttons.
These allow you to access Terminal and
Modem Configurator without going back to
the main menu. Extended Information provides
detailed information about your modem,
previous connections, firmware dates, etc. This
next section details using the Terminal option.
Using Terminal
NOTE: Different systems and
BIOSes use different methods of
disabling COM ports. As a result,
we cannot provide support for
enabling COM ports. Please refer
to your system’s documentation or
contact the manufacturer of your
system for further information.
70
You can access Terminal from either the Main
menu or the Detect New Modems screen.
Clicking Terminal brings up the Terminal
window.
USING MODEM STATION
In addition to allowing direct entry of modem
commands, the Terminal window also allows
you to dial into Bulletin Boards, listing services,
and other online services.
71
USING MODEM STATION
NOTE: Modem Station’s
Terminal window is provided
primarily for troubleshooting
convenience. If you frequently use
BBSs, you will probably want to
use a separate, full-featured
Terminal program such as that
provided in our RapidComm
software.
On the lower part of the Terminal screen, you
will see the COM port your modem is
currently using. To select another modem,
simply click on the arrow and select that
modem’s assigned port.
To the right of the port settings are the port
speed settings. Port speed is the speed at
which your computer sends data to the
72
modem. We will discuss port speed settings in
detail later in this section.
Terminal includes a basic auto dialer.
To have Terminal dial a number for you, click
Dial to bring up the “Dial” screen.
You need to tell the Dialer a few things about
your phone system, such as whether it uses
tone or pulse dialing, what digit, if any, you
need to dial to get an outside line, and whether
the dialer should wait between dialing that digit
and the rest of the number. Once you provide
this information, simply enter the phone number
as if you were dialing a telephone. Click Dial
Now to dial the number.
You can end a call by clicking Hang Up at the
bottom of the screen.
USING MODEM STATION
When you are finished using Terminal, click
Exit to return to the screen you accessed it
from.
Using Modem Configurator
You can access Modem Configurator from
either the Main menu or the Detect New
Modems screen.
Click Modem Configurator to bring up this
menu.
The Modem Configurator menu gives you
access to the following options:
♦ DATA CONTROL
♦ CONNECTION CONTROL
♦ MODEM TO COMPUTER
♦ CONNECTION RATES
♦ DIALING/ANSWERING
♦ STORED NUMBERS
♦ RESTORE DEFAULTS
♦ EXIT
Data Control
This is the “Data Control” screen.
73
USING MODEM STATION
The “Data Control” screen allows you to
assign the following basic communications
settings:
♦
♦
♦
♦
♦
♦
PORT SPEED
PARITY
STOP BITS
WORD
FLOW CONTROL
SERIAL PORT RATE
For information on using these settings, please
refer to the “Glossary” at the back of this
manual.
Click Help for quick definitions of the
terminology used in this screen.
In the upper left-hand corner of the screen,
you will see the data control commands
currently in use.
74
Once you have entered the Data Control
settings, click Save to Modem. This stores
the settings so that you do not have to re-enter
them.
This screen also displays the default DIP
switch settings.
TECHNICAL STUFF: DIP
switches are tiny switches that
control a few basic functions on
some external modems. On
modems without DIP switches,
these functions are handled by
modem commands.
Click Exit to return to the Modem
Configurator menu.
USING MODEM STATION
CONNECTION CONTROL
This is where you adjust your modem’s
connection and transmission settings.
Click Connection Control to bring up this
screen.
Use the “Connections Control” screen to
configure the following settings:
♦
♦
♦
♦
DATA TERMINAL READY (DTR)
ERROR CORRECTION
DATA COMPRESSION
CARRIER DETECT
For detailed information about these settings,
refer to the “Glossary” or the “Technical Quick
Reference” sections of this manual.
TIP: On external modems,
receiving a Data Terminal Ready signal
causes the TR light to light up.
In the upper left hand corner of this screen,
you will find the current Connection Control
settings.
Click Help for quick definitions of terminology
used in this screen.
75
USING MODEM STATION
Once you have configured your Connection
Control settings, click Save to Modem to
save your settings
Using Modem to Computer
These settings control how your modem and
computer communicate with each other. They
control what you see on your terminal screen
and how results are displayed.
76
If you look in the upper left hand corner of the
display, you will see the commands currently in
use.
The “Modem to Computer” screen allows you
to configure the following settings:
♦ LOCAL ECHO
♦ RESULT CODES
♦ RESULT CODE PREFERENCES
USING MODEM STATION
TIP: If you type ATDT and see
‘AATTDDTT’ on your screen, it is
possible that both your software and
modem have Local Echo set to ‘ON’.
Turn Local Echo ‘OFF’ on EITHER the
modem or the software to solve this
problem.
For details on using the commands in this
screen, refer to the “Glossary” or “Technical
Quick Reference” sections of this manual.
CONNECTION RATES
The “Connection Rates” screen allows you to
configure modem speeds and protocols.
WARNING! Use caution
when changing connection
settings. Improper settings may
cause your modem to function
incorrectly, disconnect, or fail to
connect at all.
Click Help to see quick definitions of
terminology used in this screen.
This screen also includes a chart of the ways
result codes can be displayed. Click Codes to
view a chart of the display options.
Once you configure your settings, click Save
to Modem to save your choices.
77
USING MODEM STATION
In the upper left hand corner of the screen you
will see the current connection commands.
This screen allows you to configure the
following settings:
DIALING/ANSWERING
The next screen allows you to adjust how your
modem initiates and receives calls.
♦ MODULATIONS
♦ V.34 SYMBOL RATES
♦ SPEEDS
Again, once you have selected your settings,
click Save to Modem to save them.
When you are finished, click Exit to return to
the Modem Configurator menu.
Please refer to the main body of the manual
and the “Glossary “for detailed information
about the terminology and settings used in this
screen.
Click Help for quick definitions of terminology
used in this screen.
78
Using this screen, you can configure the
following dial settings:
♦
♦
♦
♦
♦
WAIT FOR CARRIER
AUTO-ANSWER # OF RINGS
SPEAKER OPERATION
DIALING METHOD
SPEAKER VOLUME
USING MODEM STATION
TECHNICAL STUFF:
“Negotiation” is the noise we hear
when two modems connect. The
modems exchange information
about their respective protocols
and configurations. Once they
agree on the fastest protocol they
can both handle, transmission
begins.
STORED NUMBERS
The “Stored Numbers” screen displays the
phone numbers currently stored in your
modem’s memory.
Use this screen to edit or add numbers stored
in the modem’s memory.
To store a number in your modem’s memory,
simply click in one of the entry boxes. Type in
the phone number exactly as you would dial it.
NOTE: Position Zero has a special feature.
You can set your modem to automatically dial
this number when your computer is turned on
or when it is reset.
This is very useful if you are using your modem
with a “dumb terminal” or know that you need
to connect to a specific bulletin board or listing
service.
79
USING MODEM STATION
You can change stored numbers by highlighting
them and then typing the new numbers in their
place. Once you store your numbers, you can
dial them by entering this command from
Terminal Mode:
ATDS0, ATDS1, ATDS2, etc.
Your U.S. Robotics modem comes with one
phone number already stored in Position 0. If
you haven’t changed the default, typing
ATDS0 will automatically dial the U.S.
Robotics BBS. You will want to change this if
you are using a dumb terminal or online listing
service, of course.
Once you enter the numbers you wish to store,
click Save to Modem to store them. Click
Exit to return to the Main menu.
The last option, Restore Defaults, resets your
modem to factory specifications. This option is
80
available from many of the screens within
Modem Station. When you click Restore
Defaults, you will see a confirmation screen
asking if you are
sure you want to restore defaults. Click OK to
proceed.
TIP: Restore Defaults will set
your modem back to factory
specifications. It is a good place to
start when troubleshooting.
Using the Extended
Information Screens
The “Extended Information” screens provide
important and useful information about your
modem. Unfortunately, some of this
information is very complex.
USING MODEM STATION
We devote a separate section to the Extended
Information screens so that we can explain
what you’ll see (and why it is important to you)
as fully as possible.
♦
♦
♦
♦
There are a series of commands used to obtain
detailed information from U.S. Robotics
modems. Extended Information provides a
convenient way to get that important
information without memorizing the commands.
Winmodem users will have access to VxD
information via these screens.
From the “Detect New Modems” screen, click
Extended Information.
CONFIGURATION PROFILE
LINK DIAGNOSTICS
VxD CONFIGURATION
DIAL/SECURITY
Courier users will have access to Dial/Security
information.
Click ROM Checksum to bring up the
following screen.
The “Extended Information” screen provides
access to the following information about your
modem:
♦
♦
♦
♦
ROM CHECKSUM
PRODUCT
ACTIVE PROFILE
STORED PROFILE
81
USING MODEM STATION
Technicians use the ROM Checksum to verify
information stored in the modem’s Read Only
Memory. You can check the ROM Checksum
from any Terminal program by typing ATI1
and pressing ENTER. For information about
the specific modem you are using, click
Product to bring up the next screen.
82
The “Product” screen displays the make and
model of your modem. It is the equivalent of
the ATI3 command.
Your modem is able to store two
configurations or “profiles.” Only one can be
active at any time.
USING MODEM STATION
To see information about the profile in use,
click Active Profile to bring up the next
screen.
The two lines below the connection settings are
the advanced commands currently in use.
Below them is a display of the contents of the
‘S-Registers’ for your modem. These registers
are special programmable areas of your
modem’s memory. They are used to store
commands that are too complex to be handled
by the standard (or ‘AT’) commands.
Just below that you will see the last number
dialed. You can also see this information by
typing ATI4 in a Terminal program and
pressing ENTER.
This screen contains information about your
modem’s current configuration. Starting from
the top, you will see the make and model of
your modem. Directly below that you will see
basic commands currently in use. Below that
are the current connection settings.
The next option displays the “Stored Profile”
screen. This screen shows the configuration
stored in your modem’s NVRAM (special
programmable memory). Note that any stored
phone numbers are displayed on this screen as
well. This is the equivalent of the ATI5
command. The information displayed is in the
83
USING MODEM STATION
same format as the “Active Profile” screen with
the addition of stored phone numbers.
The next two screens contain information that
our technical support representatives may need
if you request support.
Click Configuration to bring up the first of
these screens.
84
The “Configuration” screen displays the
following information about your modem.
• Product Type displays the information
relating to the make and model of your
modem.
• Options displays the protocols available to
your modem.
• Fax Options displays your fax
compatibility.
• Clock Frequency displays the speed of the
tiny “clock” that controls the timing of
operations within the modem.
• EPROM displays how much information
can be stored in the EPROM (or
Supervisor) chip.
• RAM displays how much memory your
modem has for processing commands and
internal functions.
• Supervisor Date (or EPROM Date)
displays the version date of the ‘firmware’
USING MODEM STATION
stored in the Supervisor chip. (The
Supervisor chip contains the special
software used to control your modem’s
functions.) If a support representative asks
you for your Supervisor or EPROM date,
look here.
• DSP Date is the date of the ‘firmware’ that
controls the DSP in your modem.
• Supervisor and DSP rev (or revisions) are
the equivalent of software version numbers.
• DAA Country displays the countries your
modem is designed for. This is important
because phone systems and
telecommunications laws vary from country
to country.
Click Link Diagnostics to bring up the “Link
Diagnostics” screen.
TECHNICAL STUFF: The
Supervisor chip contains the commands
that control your modem. The DSP
controls execution of those commands.
The Supervisor chip needs orders from
the DSP before it can carry out a
command.
85
USING MODEM STATION
The “Link Diagnostics” screen displays
statistics about your last connection. This
screen is most often used as an aid in
diagnosing connection failures, but it also can
provide information about connection speeds
and phone line conditions.
• Modulation displays the speed and type of
connection.
• Carrier Frequency displays the electrical
frequency of the carrier signal.
• Symbol Rate displays the speed of the
transmission.
• Trellis Code, Nonlinear Encoding,
Shaping, and Precoding all refer to
methods of handling high speed data
transmission.
• The items followed by (dB), (-dB), (-dBm),
and (msec) refer to variations in the
modulation tones that actually carry the
information.
86
The rest of the screen contains information
about CRC errors, Block Errors (Blers),
resent data, and other data. This information is
very important if you experience problems
transmitting or receiving data or if you suspect
problems with your phone service.
Only our U.S. Robotics Winmodems use
VxDs, or Virtual Device Drivers. The
Winmodem uses special software (called a
‘driver’) to manage many of the functions
handled by hardware in our other modems. If
you are using a Winmodem, the Extended
Information menu will offer you the option of
clicking on VxD to view information on the
Winmodem driver. Please refer to your
Winmodem manual for detailed information on
the Winmodem drivers.
Courier users will see a display of current
Dialback/Security settings. Refer to your
USING MODEM STATION
Courier documentation for instructions on
configuring these special features.
General Installation
Guidelines
Here are a few tips that may make setting up
your new modem as simple as possible:
♦ Make certain you have everything you
need before you get started.
♦ Take a few minutes to read through the
manual(s) that come with your modem.
♦ Have a small jar or cup handy to hold
screws and jumper shunts.
♦ Choose a time when you won’t be
interrupted.
♦ Check in advance to see what IRQs you
have available.
♦ Set the jumper shunts on your modem (if
necessary) before installation.
♦ If you are doing a Plug and Play installation
with Windows 95, remember to remove all
the jumper shunts from your jumper pins
first.
♦ Before installing your modem, write the
serial number in the space provided on the
first page of this manual.
♦ Once you’ve installed your modem, make
a note of the COM port and IRQ settings
you are using on the first page of this
manual. You may need this information to
configure your communications software.
We hope that you enjoy exploring the world of
information and entertainment your new
Sportster modem will open up for you and that
Modem Station will make using and
87
USING MODEM STATION
configuring your new modem as simple as
possible.
Remember: If you have any questions or
problems, feel free to visit one of our many
online forums.
88
For answers to specific questions, be sure to
visit our World Wide Web support site at
www.usr.com/home/online/main.htm, or try
our BBS (847-982-5092).
U.S. ROBOTICS MODEM UPDATE WIZARD
Your Connections CD-ROM includes the U.S.
Robotics Modem Update Wizard. This software
is designed to quickly update your modem,
whether to a newer version of its current code or
to U.S. Robotics’ revolutionary new x2
technology. You can update your modem in any
of the following 3 ways:
33.6 K to 33.6 K (update)
= FREE
33.6 K to 56 K (upgrade)
= $FEE*
56 K
to 56 K (update)
= FREE
* Fee for upgrades is subject to change.
NOTE: You can obtain this software
from our BBS (847-982-5092) or from our
World Wide Web page (www.usr.com) if
you do not have a Connections CD-ROM.
NOTE: Complete the instructions in
the Software Installation and Testing
section of this manual before installing
the Modem Update Wizard.
NOTE: These instructions pertain to
Windows 3.x and Windows 95. However,
only Windows 95 screen shots are shown
unless the process for Windows 3.x users
differ significantly.
Installation
1. Insert the Connections CD-ROM into your
CD-ROM drive.
89
U.S. ROBOTICS MODEM UPDATE WIZARD
2. Click the Windows Start menu and point to
Programs. Point to U.S. Robotics
Connections. Then click Connections.
NOTE: Windows 3.x users launch the
CD-ROM by clicking the Connections icon
in the Connections program group.
90
3. From the main Connections menu, click
Customer Support (circled in the following
screen shot).
U.S. ROBOTICS MODEM UPDATE WIZARD
4. When the Customer Support menu appears,
click Modem Update Wizard (circled in the
following screen shot).
5. Next, click Learn More & Get Software
(circled in the following screen shot).
91
U.S. ROBOTICS MODEM UPDATE WIZARD
6. In the following screen, click Install (circled
below).
92
7. This launches the U.S. Robotics Modem
Update Wizard Installer. The screen that
follows is the welcome screen for the installer.
After you read this screen, click Next.
U.S. ROBOTICS MODEM UPDATE WIZARD
8. The next screen indicates where the installer
will store the files for the Update Wizard. If the
indicated location is acceptable, click Next.
Otherwise, click Browse to find an acceptable
directory.
9. You will see the following screen for a moment
as the installer creates the Modem Update
Wizard program group.
10.This screen indicates that the setup is
complete. Click OK.
93
U.S. ROBOTICS MODEM UPDATE WIZARD
Operation
1. Click the Windows Start button. Point to
Programs. Then point to U.S. Robotics
Modem Update Wizard. Finally, point to the
Modem Update Wizard selection.
2. After you read the “Welcome” screen, click
Next.
94
3. This brings up the license agreement. After
reading the license agreement, click Accept to
continue.
U.S. ROBOTICS MODEM UPDATE WIZARD
4. The software will now detect any modems
installed on your system. When the detection
phase finishes, you will see the following screen
(the modems shown on your screen may
differ). Click the modem you wish to upgrade
and then click Next to continue.
5. The program will now determine if the selected
modem is software upgradable.
Non-Upgradable Modems
If your modem IS NOT software upgradable,
the program will display the following screen.
• Click U.S. Robotics if your modem is a
U.S. Robotics modem to learn more about
your upgrade options.
95
U.S. ROBOTICS MODEM UPDATE WIZARD
• Click Other to learn more about how to
purchase a U.S. Robotics x2 modem.
Upgradable Modems
If the modem IS software upgradable, you will
see the following screen.
Click Dial U.S. Robotics (which should be
the default selection) in the pull-down menu.
Click Upgrade to x2 Technology if you wish
96
to upgrade a 33.6 kbps modem to 56 kbps
code or click Update my modem’s code to
update your modem with the most recent
version of its original code. Then click Next.
6. The next screen is the order information
screen. Users who are purchasing a 56K
upgrade will see the first screen on the next
page. It includes a credit card information
query. The second screen appears to users
who are updating their modem’s code. Fill in
the screen with the appropriate information and
then click Next.
U.S. ROBOTICS MODEM UPDATE WIZARD
Users Purchasing 56K Upgrades
7. This screen dials the U.S. Robotics Update
Server. Click Tone or Pulse dialing as
necessary. If you normally dial a prefix (such
as 9) to dial out on your phone line, type that
prefix before the 1 in the Prefix box. Then
click Dial.
Users Updating Their Modem’s Code
97
U.S. ROBOTICS MODEM UPDATE WIZARD
8. Once connected, the server will compare
available upgrades with the current code in
your modem. If they differ, the server will
automatically initiate the download procedure.
NOTE: Users purchasing a 56K
upgrade are asked if the charge is
acceptable. Click Yes to continue. The
price of the upgrade is subject to change
and includes applicable taxes.
98
NOTE: If you do not have the most
up to date .inf file for your modem (the
file that helps Windows correctly
identify your modem), you will see the
following screen as the Modem Update
Wizard automatically downloads the
file.
U.S. ROBOTICS MODEM UPDATE WIZARD
9. You will see this screen as the Wizard
downloads the file for your modem.
WARNING! To avoid the risk of
damaging your modem, DO NOT turn off
the modem while it is being updated.
11. When updating is complete, the progress bar
will be full and an “Update/Upgrade
Complete” message appears. Click Next.
10.When the download is complete, the modem
disconnects from the server. The words
“Downloading file…” change to “Upgrading
…” or “Updating …”, depending on whether
you are upgrading or updating your modem. A
new progress bar appears. This indicates that
your modem’s code is being updated.
99
U.S. ROBOTICS MODEM UPDATE WIZARD
12.You will see a “Congratulations!” screen.
Click Details.
13.Click OK once you verify that the process was
a success. When you return to the
“Congratulations!” screen, click Finished.
Congratulations!
Enjoy the benefits of your updated Sportster
modem!
100
TROUBLESHOOTING AND ONLINE HELP RESOURCES
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
The computer or
software will not
recognize the
modem.
Your modem might not
be turned on.
Make sure the modem is turned on. The power switch is on top of external
modems. The CS light on the front panel should be lit. If you installed an
internal modem, it should power up when the computer is turned on.
Type in all upper case (AT) or lower case (at).
You may not be entering
modem commands in the
proper manner.
If you are using an
external modem, the
COM port may not be
enabled.
You may have a COM
port/IRQ conflict.
Refer to your computer’s manual for information concerning enabling COM
ports (usually involves altering the bios settings, motherboard jumpers, and
the operating system).
WINDOWS 95 USERS: Uninstall the modem from your computer. In Device
Manager, determine what COM port and IRQ settings are free on your system.
Set the jumper shunts on your modem’s jumper pins to these free settings,
using the diagrams below as a guide. If no IRQ setting is available, you may
need to move a device off of an IRQ in order to free it for use by your modem.
0
0
1
SE
L
COM 1
1
SE
COM 2
0
2
0
1
1
SE
L
COM 3
L
SE
L
3
IRQ
4
5
7
COM 4
101
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
The computer or
software will not
recognize the
modem (cont.).
You may have a COM
port/IRQ conflict
(cont.).
Make sure you have the correct COM port and IRQ settings in your software and/or in the
Windows Device Manager.
The modem
displays double
characters on
your monitor.
Both the modem’s and
software’s local
character echoes are
probably turned on.
The modem
won’t go off
hook to dial or
doesn’t answer
the phone.
You may have plugged
your modem’s phone
cord into a digital line.
You might have a bad
phone cord connection
to your modem.
You may have devices
between the modem and
the phone jack.
You may have a poor
line connection.
102
Disable Local Echo in your software OR on your modem (not both). You can turn the local
echo off on the modem by typing ATE0 and then pressing ENTER in your software’s terminal
mode. To turn the local echo off in the software, refer to its documentation.
Plugging your modem’s phone cord into a digital phone line can damage the modem. Call your
phone company if you are unsure whether or not your phone line is digital.
The phone cord should be plugged into the TELCO jack on the modem and the wall phone
jack. The phone cord should be no longer than 12 feet in length. Use the phone cord included
in your Sportster box if possible.
There should be no line splitters, fax machines, or other devices between the modem and the
wall jack.
Place the call again. Calls are routed differently each time. To verify a valid phone
connection, enter RapidComm’s Terminal mode, type ATX3DT8479855092 (the U.S.
Robotics BBS), and press ENTER. This string bypasses the dial tone, allowing a connection if
the modem is functioning properly.
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM
DIAGNOSIS
The modem won’t
go off hook to dial
or doesn’t answer
the phone (cont.)
If you have voice
mail, your dial tone
may be altered when
messages are waiting.
Answer your voice mail to restore your normal dial tone.
Your software may
not have auto answer
enabled.
Enable the auto answer feature. In RapidComm’s Terminal mode, type ATS0=1 and press
ENTER. NOTE: You need to enable auto answer before every session unless you alter your
software’s initialization string to permanently enable auto answer.
Both modems
exchange carrier
signals but fail to
establish a link.
Your x2 modem
cannot achieve an
x2 Internet
connection.
You may have a poor
line connection.
POSSIBLE SOLUTION
Try placing the call again. The phone company routes calls differently each time. To
verify a valid phone connection, enter RapidComm’s Terminal mode and type
ATX3DT8479855092 and press ENTER (the phone number is the U.S. Robotics BBS).
This string bypasses the dial tone, allowing a connection if the modem is functioning
properly.
Check http://x2.usr.com/connectnow for a list of ISPs that offer x2 technology.
Your Internet Service
Provider (ISP) may
not be x2 capable.
Call your phone company to determine if this might be the problem. You can also run U.S.
Robotics’ Line Test utility to determine if your phone line is x2 capable. Visit our Line
Test Web page at http://x2.usr.com/connectnow/linetest.html.
The phone lines in
your area may not be
x2 capable.
103
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
Your modem
won’t
connect at
2400 bps with
a 2400 bps
modem.
The modem you’re trying to
connect with could be an
older model that doesn’t
support error control.
You can disable error control on your modem by typing AT&M0 in
terminal mode and pressing ENTER. Now try placing the call to the remote
modem again. When finished, reset your modem to enable the error
control features. In terminal mode, type ATZ and press ENTER. Note:
ATZ4 or AT&F1 are often the best reset strings, as they restore hardware
flow control defaults.
You could have a conflict
with the remote modem’s
settings for word length,
parity, and stop bits.
Set your modem’s word length, parity, and stop bits the same as the
remote modem or BBS you are calling.
Your screen
keeps
displaying
random
garbage
characters.
104
Your software and modem
might not be set to the same
flow control settings.
Make sure the software and modem have the same flow control settings
(hardware [RTS/CTS] and software [xon/xoff]).
The best flow control settings
might not be enabled on your
modem.
In terminal mode, type AT&F1 and press ENTER to load the optimal
settings.
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
Your
communicatio
ns software is
reporting
many cyclic
redundancy
check (CRC)
errors and
low
characters per
second (CPS).
You may have a bad phone
line.
Try placing the call again. The phone company routes calls differently
each time.
Optimum flow control
settings may not be enabled
on your modem.
In terminal mode, type AT&F1 and press ENTER to load the optimum
hardware flow control settings:.
The serial port rate in your
communications software
may be set too high for your
modem’s UART or your
area’s phone lines.
Lower the serial port rate in your communications software to 57,600 bps,
38,400 bps, or 19,200 bps. NOTE: The port rate for an x2 modem cannot be
set lower than 57,600.
The remote site you are
dialing into may have trouble
with the file transfer protocol.
Try using a different file transfer protocol. Do not use Xmodem if other
protocols are available. Zmodem is the preferred protocol.
There may be a Terminate and
Stay Resident (TSR) program
(such as a screen saver or
virus scanner) running in the
background, disrupting data
communications.
Disable any Terminate and Stay Resident (TSR) programs running in the
background. If you have software running as a TSR, check the software’s
manual for information about disabling its ability to operate as a TSR.
105
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
Your
communications
software is
reporting many
cyclic
redundancy
check (CRC)
errors and low
characters per
second (CPS)
(cont.).
You may be trying to download a file to a
compressed area of your hard disk.
Download to an uncompressed area on your hard drive.
Errors are
constantly
occurring in
your V.17 fax
transmissions.
RapidComm
fails to initialize
the modem.
106
Your modem initialization string could be
insufficient for fax transmissions.
There may be a Terminate and Stay
Resident (TSR) program (such as a screen
saver or virus scanner) running in the
background, disrupting data
communications.
In terminal mode, type AT&H3&I2&R2S7=90 and press ENTER. This is an
initialization string. The standard string for faxing is AT&F1S36=0.
Disable any Terminate and Stay Resident (TSR) programs running in the
background. If you have software running as a TSR, check the software’s manual
for information about disabling its ability to operate as a TSR.
Lower baud rate to 9600, 7200, or 4800..
Your baud rate may be set too high.
You may be trying to fax a compressed
file
Open the file in the application in which it was created. Select RapidComm as the
printer and then print the file.
RapidComm’s port settings may be
incorrect.
Make sure RapidComm’s port settings are correctly set for your modem.
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
Online Help Resources
Connecting to the U.S. Robotics BBS
To connect to the U.S. Robotics Bulletin
Board System, follow these steps:
1. Start RapidComm. The software settings
for the BBS are:
ANSI terminal emulation
Data Bits: 8
Parity: None
Stop Bits: 1
2. Put RapidComm in Terminal mode by
clicking on the Terminal button (see the
following screen image).
3. Type ATDS0 and press ENTER.
NOTE: ATDS0 automatically dials
1-847-982-5092, the U.S. Robotics
BBS.
If this is your first time connecting to our
BBS, you will be asked to enter your name,
107
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
create a password of your choice, and to fill
out a questionnaire.
contains hundreds of helpful files and tips to
help simplify using your modem.
Downloading the Technical Reference
Guide
To download the Technical Reference
Guide, follow these steps:
1. In the main menu, type D for Download a
file.
The preceding screen shot is what the
introduction screen of the U.S. Robotics
BBS will look like. The BBS gives you
access to customer and technical support
documents and the BBS library. The library
(This is what the main menu will look like.)
108
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
2. A Filename to Download: text box
appears on the screen.
PKUNZIP.EXE is also available on
the BBS.
• x2_HELP.ZIP—The Guide in a zipped
Windows Help format.
3. Type the name of the file you wish to
receive. You have three manual formats
from which to choose:
• x2_WORD.ZIP—The Guide in a
zipped Word for Windows v6.0
format. You will need PKUNZIP.EXE
to uncompress this file.
• x2_ASCI.TXT—The Guide in an
uncompressed ASCII format.
4. Protocol Type for Transfer. Your
selection depends on what your software
supports. If possible, make Zmodem your
first choice. Xmodem should be your last
choice since it is very slow.
5. Depending on the software you are using,
you will either be prompted where you
want the file placed, or the file will be
placed in the directory where your
communications software is loaded.
6. When the file transfer is complete, and
you are ready to leave the BBS, type G
(for Good-bye) from the main menu.
109
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
U.S. Robotics offers a number of other online
technical support options. Choose any one of
the following options if you need help with or
want to learn more about your new modem.
Internet FTP
Provides free library containing the same files
as the BBS site. FTP to ftp.usr.com.
Internet on Demand
Provides automatic technical support through
a library containing product information,
quick reference cards, and installation help.
To obtain an index of available documents,
send a blank
e-mail to [email protected]. To have a
document e-mailed to you, send the
document's number as the subject.
110
World Wide Web
A U.S. Robotics Home Page containing the
same information as the Internet on Demand
listing. Log on to:
www.usr.com/home/online/main.htm
CompuServe
Access the same information as the Internet
FTP site. Connect through the US Robotics
Forum or e-mail us through CompuServe
Mail for a response within 24 hours. The
U.S. Robotics forum address is GO
USROBOTICS. Address private messages
to 76711,707.
America Online
Connect to U.S. Robotics through America
Online. Go to the Keyword field and type
USROBOTICS to connect to various U.S.
Robotics resources, such as file libraries,
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
message boards, online customer support,
and product announcements.
Technical Support Hotline
Technical questions about U.S. Robotics
modems can also be answered by technical
support representatives.
Hotline
(847) 982-5151
(Hours: 8:00 am - 6:00 pm CST)
Priority No-Hold Service
U. S. Robotics also staffs its own 900 feebased number for immediate assistance.
These lines are staffed from 8 a.m. - 6 p.m.
CST Monday through Friday.
No-Hold line 900-555-USR1
Are You Still Having
Problems?
•
Review this manual.
•
•
Call or visit your modem dealer. They
may be able to assist you. This is much
more efficient and time-saving than
returning the modem to U.S. Robotics.
If your dealer can't help you, contact
U.S. Robotics Customer Support. When
you call, specify your modem serial
number (found on the modem and on the
outside of the box), the software being
used, and, if possible, have the contents
of your ATI7 screen available.
If You Need to Return the
Modem to Us
Contact U.S. Robotics Customer Support. If
the support representative determines that
you need to return the modem, you will
receive an SRO (Service Repair Order)
number. You must have an SRO number
111
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
before returning the modem to us. Ship the
unit, postage paid, in a strong box made of
corrugated cardboard with plenty of packing
material. DO NOT send the modem back in
the original box. Send ONLY the modem
(NOT the power supply, manuals, CDROM, etc.). Include your SRO number,
name, and address on the shipping label as
well as inside the package. If possible, send
the package via a courier capable of tracking
the progress of the shipment.
Ship to the following address:
3Com
Attn: RMA
SRO#
6201 W. Oakton, East Dock
Morton Grove, IL 60053
112
RapidComm
Troubleshooting Tips
PROBLEM: The lights in RapidComm’s
modem light monitor do not correspond to
the actual lights on an external modem.
DIAGNOSIS: Under certain circumstances,
the modem light monitor does not correctly
report the activity of the modem. We are
aware of this problem and are working to
rectify the situation in upcoming versions of
the software.
PROBLEM: The station ID works
intermittently.
DIAGNOSIS: Under certain circumstances
(including receiving a fax), the station ID may
not work properly.
TROUBLESHOOTING AND ONLINE H ELP RESOURCES
PROBLEM: RapidComm does not work
properly at 115.2 kbps.
DIAGNOSIS: The presence of disk
compression software on your system
hampers RapidComm’s ability to work
properly at 115.2 kbps. Removal of the disk
compression software from your system will
allow RapidComm to operate at 115.2 kbps.
A Note to User’s with Older
Versions of RapidComm on
Their Systems
You must uninstall older versions of
RapidComm from your system before
installing the most recent version (contained
on the CD-ROM that came with your new
56K modem). Otherwise you may introduce
conflicts in your system that will hamper
RapidComm’s ability to work properly.
113
GLOSSARY
Cross references are printed in boldface. Cross
references with items in the Command
Summary, found in the Technical Quick
Reference (Section D), are printed in italics.
analog loopback
A modem self-test in which data from the
keyboard or an internal test pattern is sent to
the modem's transmitter, turned into analog
form, looped back to the receiver, and
converted back into digital form.
analog signals
A variety of signals and wavelengths that can
be transmitted over communications lines such
as the sound of a voice over the phone line.
answer mode
The mode used by your modem when
answering an incoming call from an originating
114
modem. The transmit/receive frequencies are
the reverse of the originating modem, which is
in originate mode.
application
A computer program designed to perform a
specific task or set of tasks. Examples include
word processing and spreadsheet applications.
ARQ
Automatic Repeat reQuest. A function that
allows your modem to detect flawed data and
request that it be retransmitted. See MNP and
V.42.
ASCII
American Standard Code for Information
Interchange. A code used to represent letters,
numbers, and special characters such as $, !,
and /.
GLOSSARY
asynchronous transmission
Data transmission in which the length of time
between transmitted characters may vary.
Because characters may not be transmitted at
set intervals, start/stop bits are used to mark
the beginning and end of each character.
auto answer
Sets the modem to pick up the phone line
when it detects a certain number of rings. See
S-register S0 in the “Technical Quick
Reference.”
auto dial
A process where your modem dials a call for
you. The dialing process is initiated by sending
an ATDT (dial tone) or ATDP (dial pulse)
command followed by the telephone number.
Auto dial is used to dial voice numbers. See
command Dn.
baud rate
A term used to measure the speed of an analog
transmission from one point to another.
Although not technically accurate, baud rate is
commonly used to mean bit rate.
binary digit
A 0 or 1, reflecting the use of the binary
numbering system. Used because the computer
recognizes either of two states, OFF or ON.
Shortened form of binary digit is bit.
bit rate
Also referred to as transmission rate. The
number of binary digits, or bits, transmitted
per second (bps). Communications channels
using analog modems are established at set bit
115
GLOSSARY
rates, commonly 2400, 4800, 9600, 14,400,
28,800 and higher.
bits per second (bps)
The bits (binary digits) per second rate.
Thousands of bits per second are expressed as
kilobits per second (kbps).
buffer
A temporary memory area used as storage
during input and output operations. An
example is the modem's command buffer.
byte
A group of binary digits stored and operated
upon as a unit. Most often the term refers to 8bit units or characters. One kilobyte (KB) is
equal to 1,024 bytes or characters; 640 KB is
equal to 655,360 bytes or characters.
116
carrier
The basic signal altered or modulated by the
modem in order to carry information.
character
A representation, coded in binary digits, of a
letter, number, or other symbol.
characters per second (CPS)
A data transfer rate generally estimated from
the bit rate and the character length. For
example, at 2400 bps, 8-bit characters with
start/stop bits (for a total of ten bits per
character) will be transmitted at a rate of
approximately 240 characters per second
(cps). Some protocols, such as error-control
protocols, employ advanced techniques such
as longer transmission frames and data
compression to increase cps.
GLOSSARY
class 1 and 2.0
International standards used by fax
application programs and faxmodems for
sending and receiving faxes.
cyclic redundancy checking (CRC)
An error-detection technique consisting of a
test performed on each block or frame of data
by both sending and receiving modems. The
sending modem inserts the results of its tests in
each data block in the form of a CRC code.
The receiving modem compares its results with
the received CRC code and responds with
either a positive or negative acknowledgment.
data communications
The transmission or sharing of data between
computers via an electronic medium.
data compression table
A table containing values assigned for each
character during a call under MNP5 data
compression. Default values in the table are
continually altered and built during each call:
The longer the table, the more efficient
throughput gained.
data mode
Mode used by a modem when sending and
receiving data files.
DCE
Data Communications (or CircuitTerminating) Equipment, such as dial-up
modems that establish and control the data link
via the telephone network.
117
GLOSSARY
default
Any setting assumed, at startup or reset, by the
computer's software and attached devices. The
computer or software will use these settings
until changed by the user or other software.
detect phase
In the ITU-T V.42 error-control protocol, the
first stage in establishing if both modems
attempting to connect have V.42 capability.
dictionary
The term used for compression codes built by
the V.42 bis data compression algorithm.
digital loopback
A test that checks the modem's RS-232
interface and the cable that connects the
terminal or computer and the modem. The
modem receives data (in the form of digital
118
signals) from the computer or terminal, and
immediately returns the data to the screen for
verification.
digital signals
Discrete, uniform signals. In this manual, the
term refers to the binary digits 0 and 1.
DTE
Data Terminal (or Terminating) Equipment. A
computer that generates or is the final
destination of data.
duplex
Indicates a communications channel capable of
carrying signals in both directions. See half
duplex, full duplex.
GLOSSARY
Electronic Industries Association (EIA)
Group which defines electronic standards in
the U.S.
error control
Various techniques that check the reliability of
characters (parity) or blocks of data. V.42
and MNP error-control protocols use error
detection (CRC) and retransmission of flawed
frames (ARQ).
facsimile
A method for transmitting the image on a page
from one point to another. Commonly referred
to as fax.
fax mode
The mode used by a modem to send and
receive data in facsimile format. See
definitions for V.17, V.27ter, V.29.
flow control
A mechanism that compensates for differences
in the flow of data into and out of a modem or
other device. See commands &Hn, &In, &Rn.
frame
A data communications term for a block of
data with header and trailer information
attached. The added information usually
includes a frame number, block size data,
error-check codes, and Start/End indicators.
full duplex
Signals can flow in both directions at the same
time over one line. In microcomputer
communications, may refer to the suppression
of the online local echo.
119
GLOSSARY
half duplex
Signals can flow in both directions, but only
one way at a time. In microcomputer
communications, may refer to activation of the
online local echo, which causes the modem to
send a copy of the transmitted data to the
screen of the sending computer.
Hz
Hertz, a frequency measurement unit used
internationally to indicate cycles per second.
ITU-T
An international organization that defines
standards for telegraphic and telephone
equipment. For example, the Bell 212A
standard for 1200-bps communication in
North America is observed internationally as
ITU-T V.22. For 2400-bps communication,
most U.S. manufacturers observe V.22 bis.
120
LAPM
Link Access Procedure for Modems. An
error-control protocol defined in ITU-T
Recommendation V.42. Like the MNP
protocols, LAPM uses cyclic redundancy
checking (CRC) and retransmission of
corrupted data (ARQ) to ensure data
reliability.
local echo
A modem feature that enables the modem to
display keyboard commands and transmitted
data on the screen. See command En.
GLOSSARY
MNP
Microcom Networking Protocol, an errorcontrol protocol developed by Microcom,
Inc., and now in the public domain. There are
several different MNP protocols, but the most
commonly used one ensures error-free
transmission through error detection (CRC)
and retransmission of flawed frames.
modem
A device that transmits/receives computer data
through a communications channel such as
radio or telephone lines. It also changes signals
received from the phone line back to digital
signals before passing them to the receiving
computer.
nonvolatile memory (NVRAM)
User-programmable random access memory
whose data is retained when power is turned
off. On the Sportster modem, it includes four
stored phone numbers and the modem settings.
off/on hook
Modem operations that are the equivalent of
manually lifting a phone receiver (taking it offhook) and replacing it (going on-hook).
online fall back/fall forward
A feature that allows high-speed, error-control
modems to monitor line quality and fall back to
the next lower speed in a defined range if line
quality diminishes. As line conditions improve,
the modems switch up to the next higher
speed.
originate mode
The mode used by your modem when initiating
an outgoing call to a destination modem. The
transmit/receive frequencies are the reverse of
the called modem, which is in answer mode.
121
GLOSSARY
parity
A simple error-detection method that checks
the validity of a transmitted character.
Character checking has been surpassed by
more reliable and efficient forms of error
checking, including V.42 and MNP 2-4
protocols. Either the same type of parity must
be used by two communicating computers, or
both may omit parity.
protocol
A system of rules and procedures governing
communications between two or more devices.
Protocols vary, but communicating devices
must follow the same protocol in order to
exchange data. The format of the data,
readiness to receive or send, error detection
and error correction are some of the
operations that may be defined in protocols.
122
RAM
Random Access Memory. Memory that is
available for use when the modem is turned on,
but that clears of all information when the
power is turned off. The modem's RAM holds
the current operational settings, a flow control
buffer, and a command buffer.
remote digital loopback
A test that checks the phone link and a remote
modem's transmitter and receiver.
remote echo
A copy of the data received by the remote
system, returned to the sending system, and
displayed on the screen. Remote echoing is a
function of the remote system.
GLOSSARY
ROM
Read Only Memory. Permanent memory, not
user-programmable.
serial transmission
The consecutive flow of data in a single
channel. Compare to parallel transmissions
where data flows simultaneously in multiple
channels.
start/stop bits
The signaling bits attached to a character
before and after the character is transmitted
during asynchronous transmission.
terminal
A device whose keyboard and display are
used for sending and receiving data over a
communications link. Differs from a
microcomputer or a mainframe in that it has
little or no internal processing capabilities.
terminal mode
Software mode that allows direct
communication with the modem. Also known
as command mode.
throughput
The amount of actual user data transmitted per
second without the overhead of protocol
information such as start/stop bits or frame
headers and trailers. Compare with
characters per second.
V.8
The ITU-T standard specification that covers
the initial handshaking process.
123
GLOSSARY
V.17 fax
An ITU-T standard for making facsimile
connections at 14,400 bps, ,12,000 bps,
9,600 bps, 7,200 bps.
V.21
An ITU-T standard for modems operating in
asynchronous mode at speeds up to 300 bps,
full-duplex, on public switched telephone
networks.
V.22
An ITU-T standard for modem
communications at 1200 bps, compatible with
the Bell 212A standard observed in the U.S.
and Canada.
V.22 bis
An ITU-T standard for modem
communications at 2400 bps. The standard
124
includes an automatic link negotiation fallback
to 1200 bps and compatibility with Bell
212A/V.22 modems.
V.27 ter
An ITU-T standard for facsimile operations
that specifies modulation at 4800 bps, with
fallback to 2400 bps.
V.29
An ITU-T standard for facsimile operations
that specifies modulation at 9600 bps, with
fallback to 7200 bps.
V.32
An ITU-T standard for modem
communications at 9600 bps and 4800 bps.
V.32 modems fall back to 4800 bps when line
quality is impaired.
GLOSSARY
V.32 bis
An ITU-T standard that extends the V.32
connection range: 4800, 7200, 9600, 12,000,
and 14,400 bps. V.32 bis modems fall back to
the next lower speed when line quality is
impaired, fall back further as necessary, and
also fall forward (switch back up) when line
conditions improve (see online fall back/fall
forward).
V.34
An ITU-T standard that currently allows data
rates as high as 28,800 bps.
V.34+
An enhancement to V.34 that enables data
transfer rates as high as 33,600 bps.
V.42
An ITU-T standard for modem
communications that defines a two-stage
process of detection and negotiation for
LAPM error control.
V.42 bis
An extension of ITU-T V.42 that defines a
specific data compression scheme for use
during V.42 connections.
Xmodem
The first of a family of error control software
protocols used to transfer files between
modems. These protocols are in the public
domain and are available from many bulletin
board services.
125
GLOSSARY
XON/XOFF
Standard ASCII control characters used to
tell an intelligent device to stop/resume
transmitting data.
Ymodem G
Similar to Ymodem, except it includes no error
checking, which makes it faster.
Ymodem
An error-checking protocol that can send
several files of data at a time in 1024-byte
(1K) blocks. This protocol can use either
checksums or CRC for error checking.
Zmodem
Similar to Xmodem and Ymodem, except it
includes batch transfer, the ability to recover
from a partially complete transfer, an autostart
feature, and improved efficiency.
126
TECHNICAL QUICK REFERENCE
This section includes information about:
•
•
•
•
•
Front Panel Lights
Command Summary
DIP Switches
S-Registers
The Serial Interface (cable information)
127
TECHNICAL QUICK REFERENCE
Front Panel Lights (External Modems)
Symbol
Meaning
Status
AA ........ Auto Answer.................Answer mode: ON when register S0 is set to 1 or higher (Auto
Answer), and when answering a call; OFF when modem originates
a call. Light flashes when there is an incoming call.
CD......... Carrier Detect ...............ON if modem receives a valid data signal (carrier) from a remote
modem, indicating that data transmission is possible. Always ON if
CD override is ON (&C0).
RD......... Received Data...............Flashes when modem sends result codes or passes received data
bits from remote.
SD ......... Send Data .....................Flashes when computer sends a data bit to modem.
TR ......... Data Terminal Ready .....ON if modem receives a DTR signal from computer. Always ON
(modem ignores DTR) if the DTR override is ON (&D0).
CS ......... Clear to Send.................ON until modem lowers CTS when Transmit Data hardware flow
control is enabled (&H1, &H3).
ARQ/
Error Control/
FAX....... Fax Operations .............. Data Mode: Automatic Repeat Request. ON if modem is set to &M4 or
&M5 and successfully establishes an error control connection. Flashes
when modem retransmits data to remote modem. Fax Mode: Flashes to
indicate fax mode.
128
TECHNICAL QUICK REFERENCE
Command Summary
•
•
•
•
Type commands in either upper or lower case, not a combination. Use the
Backspace key to delete errors. (You cannot delete the original AT command since
it is stored in the modem buffer.)
If a command has numeric options and you don’t include a number, zero is
assumed. For example, if you type ATB, the command ATB0 is assumed.
Every command except A/ and +++ must begin with the AT prefix and be entered by
pressing ENTER.
The maximum command length is 58 characters. The modem doesn’t count the AT prefix,
carriage returns, or spaces.
NOTE: All defaults are based on the &F1Hardware Flow Control
template loaded in NVRAM when the modem is shipped. Defaults are listed in
italics.
129
TECHNICAL QUICK REFERENCE
Command Set
$
A
A/
Any key
AT
130
Use in conjunction with D, S,
or & commands (or just AT)
to display a basic command
list; online help.
Manual Answer: goes off hook
in answer mode. Pressing any
key aborts the operations.
Re-executes the last issued
command. Used mainly to
redial. This does not require
the AT prefix or a Carriage
Return.
Aborts off-hook dial/answer
operation and hangs up.
Required command prefix, except
with A/ and +++. Use alone to test
for OK result code.
Bn
U.S./ITU-T answer
sequence.
B0
B1
Dn
ITU-T answer
sequence
U.S. answer tone
Dials the specified phone
number. Includes the
following:
L
P
R
Sn
Dials the last dialed
number.
Pulse (rotary) dial
Originates call using
answer (reverse)
frequencies.
Dials the phone
number string stored in
NVRAM at position n
(n = 0−3). Phone
TECHNICAL QUICK REFERENCE
T
,
;
“
!
/
numbers are stored
with the &Zn=s
command.
Tone dial
(Comma) Pause, See
S8 definition; which
it’s linked to.
(Semicolon) Return to
Command mode after
dialing.
Dials the letters that
follow (in an
alphabetical phone
number).
(Exclamation point)
Flashes the switch
hook.
Delays for 125 ms.
before proceeding with
dial string.
W
@
$
Wait for second dial
tone (X2 or X4);
linked to S6 register.
Dials, waits for quiet
answer, and continues
(X3 or higher).
Displays a list of Dial
commands.
En
Sets local echo.
E0
Echo OFF
E1
Modem displays
keyboard commands
Fn
Sets online local echo of
transmitted data ON/OFF.
F0
Local echo ON.
Modem sends a copy
of data it sends to the
131
TECHNICAL QUICK REFERENCE
F1
Hn
In
132
remote system to your
screen.
Local echo OFF.
Receiving system
may send a remote
echo of data it
receives.
Controls ON/OFF hook.
H0
Hangs up (goes on
hook).
H1
Goes off hook.
Displays the following
information.
I0
Four-digit product
code
I1
Results of ROM
checksum
I2
I3
I4
I5
I6
I7
Results of RAM
checksum
Product type
Current modem
settings
Nonvolatile memory
(NVRAM) settings
Link diagnostics
Product configuration
Ln
Controls speaker volume
(internals only).
L0
Low volume
L1
Low volume
L2
Medium volume
L3
High volume
Mn
Operates speaker.
M0
Speaker always OFF.
TECHNICAL QUICK REFERENCE
M1
M2
M3
On
Speaker ON until
CONNECT.
Speaker always ON.
Speaker ON after dial,
until CONNECT.
Returns online.
O0
Returns online.
O1
Returns online and
retrains.
P
Sets pulse dial (for phone
lines that don’t support
touch-tone dialing).
Qn
Displays/suppresses result
codes.
Q0
Displays result codes.
Q1
Quiet mode; no result
codes.
Q2
Displays result codes
only in Originate
mode.
Sr.b=n Sets bit .b of register r to n
(0/OFF or 1/ON).
Sr=n Sets register r to n.
Sr?
Displays contents of SRegister r.
S$
Displays a list of the SRegisters.
T
Sets tone dial.
Vn
Displays verbal/numeric
result codes.
V0
Numeric codes
V1
Verbal codes
133
TECHNICAL QUICK REFERENCE
Xn
Sets result code displayed. Default is X4.
Xn Setting
Result Codes
0/OK
1/CONNECT
2/RING
3/NO CARRIER
4/ERROR
5/CONNECT 1200
6/NO DIAL TONE
7/BUSY
8/NO ANSWER*
9/Reserved
10/CONNECT 2400
11/RINGING
13/CONNECT 9600
18/CONNECT 4800
20/CONNECT 7200
21/CONNECT 12000
25/CONNECT 14400
43/CONNECT 16800
85/CONNECT 19200
91/CONNECT 21600
99/CONNECT 24000
103/CONNECT 26400
107/CONNECT 28800
151/CONNECT 31200
134
X0
X1
X2
X3
X4
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
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•
•
•
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•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
TECHNICAL QUICK REFERENCE
Xn (continued)
Xn
Result Codes (cont.)
155/CONNECT 33600
180/CONNECT 33333
184/CONNECT 37333
188/CONNECT 41333
192/CONNECT 42666
196/CONNECT 44000
200/CONNECT 45333
204/CONNECT 46666
208/CONNECT 48000
212/CONNECT 49333
216/CONNECT 50666
220/CONNECT 52000
224/CONNECT 53333
228/CONNECT 54666
232/CONNECT 56000
236/CONNECT 57333
Adaptive Dialing
Wait for 2nd Dial Tone (W)
Wait for Answer (@)
Fast Dial
X0
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
X1
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
X2
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
X3
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
X4
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
*Requires @ in dial string; replaces NO CARRIER
135
TECHNICAL QUICK REFERENCE
Yn
Z
136
Z4
Selects power-on/reset
default configuration.
Y0
Default is profile 0
setting in NVRAM
Y1
Default is profile 1
setting in NVRAM
Resets modem.
Z0
Resets modem to
NVRAM profile
selected by Y
command or dip 7.
Z1
Resets modem to
NVRAM profile 0
Z2
Resets modem to
NVRAM profile 1
Z3
Resets modem to
factory default profile
0 (&F0)
Z5
Resets modem to
factory default profile
1 (&F1)
Resets modem to
factory default profile
2 (&F2)
&$
Displays a list of
ampersand (&) commands.
&A
Enables/disables additional
result code subsets (see
Xn).
&A0 ARQ result codes
disabled
&A1 ARQ result codes
enabled
&A2 V.32 modulation
indicator added
TECHNICAL QUICK REFERENCE
&A3
Protocol indicators
added
LAPM/MNP/NONE
(error control) and
V42bis/MNP5 (data
compression)
&Bn Manages modem’s serial
port rate.
&B0 Variable, follows
connection rate
&B1 Fixed serial port rate
&B2 Fixed in ARQ mode,
variable in non-ARQ
mode
&Cn Controls Carrier Detect
(CD) signal.
&C0 CD override
&C1
Normal CD
operations
&Dn Controls Data Terminal
Ready (DTR) operations.
&D0 DTR override
&D1 DTR toggle causes
online Command
mode
&D2 Normal DTR
operations
&D3 Resets on receipt of
DTR
&Fn
Loads a read-only (nonprogrammable) factory
configuration.
&F0 Generic template
&F1 Hardware flow
control template
137
TECHNICAL QUICK REFERENCE
&F2
Software flow control
template
&H2
&Gn Sets Guard Tone.
&G0 No guard tone, U.S.
and Canada
&G1 550 Hz guard tone,
some European
countries, requires B0
setting.
&G2 1800 Hz guard tone,
U.K., requires B0
setting.
&H3
&Hn Sets Transmit Data (TD)
flow control (see also &Rn).
&H0 Flow control disabled
&H1 Hardware flow
control, Clear to
Send (CTS)
138
&In
Software flow control,
XON/XOFF
Hardware and
software flow control
Sets Receive Data (RD)
software flow control (see
also &Rn).
&I0 Software flow
control disabled
&I1 XON/XOFF signals to
your modem and
remote system
&I2 XON/XOFF signals to
your modem only
&Kn Enables/disables data
compression.
&K0 Data compression
disabled
TECHNICAL QUICK REFERENCE
&K1
&K2
&K3
Auto enable/disable
Data compression
enabled
MNP5 compression
disabled
&Mn Sets Error Control (ARQ)
for connections at 1200 bps
and higher.
&M0 Normal mode, error
control disabled
&M1 Reserved
&M2 Reserved
&M3 Reserved
&M4 Normal/ARQ
&M5 ARQ mode
&Nn Sets connect speed. If
connection cannot be
established at this speed,
the modem will hang up.
Sets ceiling connect speed if
&Un is greater than 0. See
&Un.
&N0 Variable rate
&N1 300 bps
&N2 1200 bps
&N3 2400 bps
&N4 4800 bps
&N5 7200 bps
&N6 9600 bps
&N7 12,000 bps
&N8 14,400 bps
&N9 16,800 bps
&N10 19,200 bps
&N11 21,600 bps
&N12 24,000 bps
&N13 26,400 bps
&N14 28,800 bps
&N15 31,200 bps
139
TECHNICAL QUICK REFERENCE
&N16
&N17
&N18
&N19
&N20
33,600 bps
33,333 bps
37,333 bps
41,333 bps
42,666 bps
&N Continued
&N21 44,000 bps
&N22 45,333 bps
&N23 46,666 bps
&N24 48,000 bps
&N25 49,333 bps
&N26 50,666 bps
&N27 52,000 bps
&N28 53,333 bps
&N29 54,666 bps
&N30 56,000 bps
&N31 57,333 bps
140
&Pn
Sets pulse (rotary) dial
make/break ratio.
&P0 U.S./Canada ratio,
39%/61%
&P1 U.K. ratio, 33%/67%
&Rn Sets Receive Data (RD)
hardware flow control,
Request to Send (RTS) (see
also &Hn).
&R0 Reserved
&R1 Modem ignores RTS
&R2 Received Data to
computer only on
RTS
TECHNICAL QUICK REFERENCE
&Sn
&Tn
Controls Data Set Ready
(DSR) operations.
&S0 DSR override; always
ON
&S1 Modem controls DSR
Begins test modes.
&T0 Ends testing
&T1 Analog Loopback
&T2 Reserved
&T3 Local Digital
Loopback
&T4 Enables Remote
Digital Loopback
&T5 Prohibits Remote
Digital Loopback
&T6 Initiates Remote Digital
Loopback
&T7
&T8
Remote Digital with
self-test and error
detector
Analog Loopback with
self-test and error
detector
&Un Sets floor connect speed
when &Un is set greater
than 0. &Nn is the ceiling
connect speed. See &Nn.
&U0 Disabled
&U1 300 bps
&U2 1200 bps
&U3 2400 bps
&U4 4800 bps
&U5 7200 bps
&U6 9600 bps
&U7 12,000 bps
&U8 14,400 bps
141
TECHNICAL QUICK REFERENCE
&U9 16,800 bps
&U10 19,200 bps
&U11 21,600 bps
&U12 24,000 bps
&U13 26,400 bps
&U14 28,800 bps
&U15 31,200 bps
&U16 33,600 bps
&U17 33,333 bps
&U18 37,333 bps
&U19 41,333 bps
&U20 42,666 bps
&U21 44,000 bps
&U22 45,333 bps
&U Continued
&U23 46,666 bps
&U24 48,000 bps
&U25 49,333 bps
&U26 50,666 bps
&U27 52,000 bps
142
&U28
&U29
&U30
&U31
53,333 bps
54,666 bps
56,000 bps
57,333 bps
&Wn Writes current
configuration to NVRAM
templates.
&W0 Modifies the NVRAM
0 template (Y0)
&W1 Modifies the NVRAM
1 template (Y1)
TECHNICAL QUICK REFERENCE
&Yn
Sets break handling.
&Y0 Destructive, but
doesn’t send break
&Y1 Destructive,
expedited
&Y2 Nondestructive,
expedited
&Y3 Nondestructive,
unexpedited
&Zn=s Writes phone number string
s to NVRAM at position n
(n = 0−3).
&Zn=L Writes last executed dial
string to NVRAM at
position n (n = 0−3).
&Zn?
Displays the phone number
stored at position n (n = 0−
3).
&ZL?
Displays the last executed
dial string.
#CID=n Controls Caller ID
feature.
#CID=0
Caller ID disabled.
#CID=1
Caller ID enabled.
#CID=2
Caller ID enabled with
extended information,
including caller’s name.
+++
Escapes to online-command
mode.
143
TECHNICAL QUICK REFERENCE
DIP Switches (Modems with DIP Switches Only)
Note: If a DIP switch is on, it is down. If a DIP switch is off, it is up. Defaults are in italics.
Switch
Factory
Setting Function
1
OFF
2
OFF
3
ON
4
OFF
5
ON
144
Data Terminal Ready (DTR) Override
OFF Normal DTR operations: computer must provide DTR signal for the
modem to accept commands; dropping DTR terminates a call
ON Modem ignores DTR (Override)
Verbal/Numeric Result Codes
OFF Verbal (word) results
ON Numeric results
Result Code Display
OFF Suppresses result codes
ON Enables result codes
Command Mode Local Echo Suppression
OFF Displays keyboard commands
ON Suppresses echo
Auto Answer Suppression
OFF Modem answers on first ring, or higher if specified in NVRAM
TECHNICAL QUICK REFERENCE
ON Disables auto answer
Switch
Factory
Setting Function
6
OFF
7
OFF
8
ON
Carrier Detect (CD) Override
OFF Modem sends CD signal when it connects with another modem, drops
CD on disconnect
ON CD always ON (Override)
Power-on and ATZ Reset Software Defaults
OFF Loads Y or Y1 configuration from user-defined nonvolatile memory
(NVRAM)
ON Loads &F0Generic template from read only memory (ROM)
AT Command Set Recognition
OFF Disables command recognition (Dumb Mode)
ON Enables recognition (Smart mode)
145
TECHNICAL QUICK REFERENCE
S-Registers
To change a setting, use the ATSr=n command, where r is the register and n is a decimal
value from 0 − 255 (unless otherwise indicated).
Register Default
Function
S0
0
Sets the number of rings on which to answer in Auto Answer Mode. When set to
0, Auto Answer is disabled.
S1
0
Counts and stores the number of rings from an incoming call. (S0 must be greater
than 0.)
S2
43
Stores the ASCII decimal code for the escape code character. Default character is
+. A value of 128 – 255 disables the escape code.
S3
13
Stores the ASCII code for the Carriage Return character. Valid range is
127.
S4
10
Stores the ASCII decimal code for the Line Feed character. Valid range is 0 –
127.
S5
8
Stores the ASCII decimal code for the Backspace character. A value of
255 disables the Backspace key’s delete function.
146
0–
128−
TECHNICAL QUICK REFERENCE
Register
Default
Function
S6
2
Sets the number of seconds the modem waits before dialing. If Xn is set to X2 or
X4, this is the time-out length if there isn't a dial tone.
S7
60
Sets the number of seconds the modem waits for a carrier. May be set for much
longer duration if, for example, the modem is originating an international connection.
S8
2
Sets the duration, in seconds, for the pause (,) option in the Dial command.
S9
6
Sets the required duration, in tenths of a second, of the remote modem’s carrier
signal before recognition by the Sportster modem.
S10
7
Sets the duration, in tenths of a second, that the modem waits to hang up after loss
of carrier. This guard time allows the modem to distinguish between a line
disturbance from a true disconnect (hang up) by the remote modem.
While we don’t recommend connecting the modem to a line with call waiting, if you
have it, you may wish to adjust this setting upward to prevent the modem from
misinterpreting the second call signal as a disconnect by the remote modem.
147
TECHNICAL QUICK REFERENCE
Register Default
S10 (cont.)
Function
A better alternative is to ask your phone company how to temporarily disable call
waiting (usually *70W). For example: ATDT *70W phone number.
Note: If you set S10 = 255, the modem will not hang up when carrier is lost.
Dropping DTR hangs up the modem.
S11
70
Sets the duration and spacing, in milliseconds, for tone dialing.
S12
50
Sets the duration, in fiftieths of a second, of the guard time for the escape code
sequence (+++).
S13
0
Bit-mapped register. Select the bit(s) you want on and set S13 to the total of the
values in the Value column. For example, ATS13 = 17 enables bit 0 (value is 1) and
bit 4 (value is 16).
148
Bit
0
1
Value
1
2
2
3
4
8
Result
Reset when DTR drops.
Reset non-MNP transmit buffer from 1.5K to 128
bytes.*
Set backspace key to delete.
On DTR signal, auto dial the number stored in
NVRAM at position 0.
TECHNICAL QUICK REFERENCE
Register Default
S13 (cont.)
Function
Bit
4
Value
16
5
6
7
32
64
128
Result
At power on/reset, Auto Dial the number stored in
NVRAM at position 0.
Reserved
Disable quick retrains.
Disconnect on escape code.
* The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem-type file transfer
protocols without using flow control.
The 128-byte option lets remote users with slower modems keep data you’re sending from scrolling
off their screens. When remote users send your computer an XOFF (Ctrl-S) and you stop transmitting,
the data in transit from your modem’s buffer doesn’t exceed the size of their screen.
This is also very helpful in situations when a remote modem/printer application is losing characters.
S14
0
Reserved
S15
0
Bit-mapped register setup. To set the register, see instructions for S13.
Bit
0
1
2
Value
1
2
4
Result
Disable ARQ/MNP for V.22.
Disable ARQ/MNP for V.22bis.
Disable ARQ/MNP V.32/V.32bis/V.32terbo.
149
TECHNICAL QUICK REFERENCE
Register Default
S15 (cont.)
S16
Function
Bit Value Result
3
8
Disable MNP handshake.
4
16
Disable MNP level 4.
5
32
Disable MNP level 3.
6
64
MNP incompatibility.
7
128
Disable V.42 operation.
To disable V.42 detect phase, select the total of the values for bits 3
and 7.
0
Bit-mapped register setup. To set the register, see instructions for S13.
Bit
0
1
2-7
Value
1
2
4-128
Result
Reserved
Touch tone dialing test.
Reserved
S17
0
Reserved
S18
0
Test timer for &T loopback testing. Sets the time in seconds of testing before the
modem automatically times out and terminates the test. When set to 0, the timer is
disabled. Valid range is 1-255.
150
TECHNICAL QUICK REFERENCE
Register Default
Function
S19
0
Sets the duration, in minutes, for the inactivity timer. The timer activates when there
is no data activity on the phone line; at time-out the modem hangs up. S19 = 0
disables the timer.
S20
0
Reserved
S21
10
Sets the length, in 10-millisecond units, of breaks sent from the modem to the
computer; applies to MNP or V.42 mode only.
S22
17
Stores the ASCII decimal code for the XON character.
S23
19
Stores the ASCII decimal code for the XOFF character.
S24
0
Reserved
S25
20
Sets the duration, in hundredths of a second, that DTR must be dropped so that the
modem doesn’t interpret a random glitch as a DTR loss. (Most users will want to
use the default; this register is useful for setting compatibility with older systems
running under older operating software.)
S26
0
Reserved
151
TECHNICAL QUICK REFERENCE
Register Default
S27
152
0
Function
Bit-mapped register setup. To set the register, see instructions for S13.
Bit
0
Value
1
1
2
2
3
4
8
4
5
6
7
16
32
64
128
Result
Enables ITU-T V.21 modulation at 300 bps for
overseas calls; in V.21 mode, the modem answers
both overseas and domestic (U.S. and Canada) calls,
but only originates V.21 calls. (Default Bell 103)
Enables unencoded (non-trellis coded) modulation in
V.32 mode.
Disables V.32 modulation.
Disables 2100 Hz answer tone to allow two V.42
modems to connect faster.
Enables V.23 fallback mode.
Disables V.32bis mode.
Disable V.42 selective reject.
Software compatibility mode. This setting disables the
codes and displays the 9600 code instead. The actual
rate of the call can be viewed on the ATI6 screen.
Used for unusual software incompatibilities. Some
software may not accept 7200, 12,000, and 14,400
bps or greater result codes.
TECHNICAL QUICK REFERENCE
Register
Default
Function
S28
0
Eliminates the V.32 answer tones for a faster connection.
8
Default item, all times are in tenths of seconds.
255
Disables all connections except V.32 at 9600 bps.
S29
20
Sets the duration, in tenths of a second, of the V.21 answer mode fallback timer.
S30
0
Reserved
S31
128
Reserved
S32
2
Bit-mapped register setup. To set the register, see the instructions for S13.
Bit
0
1
2
3
4
5
6-7-
Value
1
2
4
8
16
32
64-128
Result
V.8 Call Indicate enabled.
Enables V.8 mode.
Reserved.
Disable V.34 modulation.
Disable V.34+ modulation.
Disable x2 modulation.
Reserved
153
TECHNICAL QUICK REFERENCE
Register Default
S33
0
Function
Bit-mapped register setup. To set the register, see the instructions for S13.
Bit
0
1
2
3
4
5
6
7
S34
0
Result
Disable 2400 symbol rate.
Disable 2743 symbol rate.
Disable 2800 symbol rate.
Disable 3000 symbol rate.
Disable 3200 symbol rate.
Disable 3429 symbol rate.
Reserved
Disable shaping.
Bit-mapped register setup. To set registers, see instructions for S13.
Bit
0
1
2
3
4
154
Value
1
2
4
8
16
32
64
128
Value
1
2
4
8
16
Result
Disable 8S-2D trellis encoding.
Disable 16S-4D trellis encoding.
Disable 32S-2D trellis encoding.
Disable 64S-4D trellis encoding.
Disable non-linear coding.
TECHNICAL QUICK REFERENCE
Register Default
Function
S34 (cont.)
Bit
5
6
7
S35
Reserved
S36-S37
Reserved
S38
0
Value
32
64
128
Result
Disable TX level deviation.
Disable Pre-emphasis.
Disable Pre-coding.
Sets an optional delay, in seconds, before a forced hang-up and clearing of the
Transmit buffer when DTR drops during an ARQ call. This allows time for a
remote modem to acknowledge receipt of all transmitted data before it is
disconnected. The modem immediately hangs up when DTR drops.
This option only applies to connections terminated by dropping DTR. If the modem
receives the ATH command, it ignores S38 and immediately hangs up.
155
TECHNICAL QUICK REFERENCE
Register Default
S39-S40
S41
Function
Reserved
0
Bit-mapped register setup. To set registers, see instructions for S13.
Bit
0
S42
156
0
Value
1
Reserved
Result
Distinctive ring enabled.
TECHNICAL QUICK REFERENCE
The Serial Interface
The serial interface is a standard developed by the Electronic Industries Association
(EIA). It defines the signals and voltages used when data is exchanged between a
computer and a modem or serial printer.
The entire standard covers many more functions than are used in most data
communications applications. Data is transmitted between the devices over a shielded
serial cable with a 25-pin male (DB-25) connector to the modem and a 25-pin, 9pin, 8-pin, or custom-built connector to the computer.
FCC regulations require the use of a shielded cable when connecting a modem to a
computer to ensure minimal interference with radio and television.
Pin assignments are factory-set in the Sportster modem to match the standard DB-25
assignments in the following table. DB-9 connectors for IBM/AT-compatible
computers should be wired at the computer end of the cable as shown in the DB-9
column.
157
TECHNICAL QUICK REFERENCE
Serial Interface Pin Definitions
DB-25 DB-9 Circuit
1
2
3
4
5
6
7
8
12
20
22
158
—
3
2
7
8
6
5
1
—
4
9
AA
BA
BB
CA
CB
CC
AB
CF
SCF
CD
CE
Function
Signal Source
Computer/Modem
Chassis Ground
Transmitted Data
Received Data
Request to Send
Clear to Send
Data Set Ready
Signal Ground
Carrier Detect
Speed Indicate
Data Terminal Ready
Ring Indicate
Both
Computer
Modem
Computer
Modem
Modem
Both
Modem
Modem
Computer
Modem
REGULATORY INFORMATION
Manufacturer’s Declaration
of Conformity
U.S. Robotics
7770 North Frontage Road
Skokie, Illinois 60077-2690
U.S.A.
declares that the product U.S. Robotics
Sportster 56K Faxmodem conforms to the
FCC’s specifications:
Part 15:
Operation is subject to the following two
conditions:
(1) this device may not cause harmful
electromagnetic interference, and
(2) this device must accept any interference
received including interference that may cause
undesired operations.
Part 68:
This equipment complies with FCC Rules Part
68. Located on the bottom of the modem is
the FCC Registration Number and Ringer
Equivalence Number (REN). You must
provide this information to the telephone
company when requested.
The REN is used to determine the number of
devices you may legally connect to your
telephone line. In most areas, the sum of the
REN of all devices connected to one line must
not exceed five (5.0). You should contact
your telephone company to determine the
maximum REN for your calling area.
159
REGULATORY INFORMATION
This equipment uses the following USOC
jacks: RJ11C.
This equipment may not be used on coin
service provided by the telephone company.
Connection to party lines is subject to state
tariffs.
An FCC compliant telephone cord and
modular plug are provided with this equipment,
which is designed to connect to the telephone
network or premises wiring using a Part 68
compliant compatible jack. See installation
instructions for details.
Caution to the User
The user is cautioned that any changes or
modifications not expressly approved by the
party responsible for compliance could void
the user’s authority to operate the equipment.
160
IC (Canada)
This digital apparatus does not exceed the
Class B limits for radio noise emissions from
digital apparatus set out in the interferencecausing equipment standard entitled Digital
Apparatus, ICES-003 of Industry Canada.
Cet appareil numérique respecte les limites de
bruits radioélectriques applicables aux
appareils numériques de Classe B préscrites
dans la norme sur le matériel brouilleur:
Appareils Numériques, NMB-003 édictée
par l'Industrie Canada.
UL Listing/CUL Listing
This information technology equipment is ULListed and CUL-Listed for use with UL-Listed
personal computers that have installation
instructions detailing user installation of card
cage accessories.
REGULATORY INFORMATION
Connecting to the Telephone Company
It is not necessary to notify the telephone
company before installing the modem.
However, the telephone company may
request the telephone number(s) to which the
Sportster modem is connected and the FCC
information printed on this page.
Be sure that the telephone line you are
connecting the modem to is a standard
analog line and not a digital (PBX), party, or
coin telephone line.
If the modem is malfunctioning, it may affect
the telephone lines. In this case, disconnect
the modem until the source of the difficulty is
traced.
Fax Branding
The Telephone Consumer Protection Act of
1991 makes it unlawful for any person to use a
computer or other electronic device, including
fax machines, to send any message unless such
message clearly contains in a margin at the top
or bottom of each transmitted page or on the
first page of the transmission, the date and time
it is sent, an identification of the business or
other entity, or other individual sending the
message, and the telephone number of the
sending machine or of such business, other
entity, or individual. (The telephone number
provided may not be a 900 number or any
other number for which charges exceed local
or long-distance transmission charges.)
In order to program this information into your
Sportster modem, refer to the RapidComm
manual on the CD-ROM that shipped with
161
REGULATORY INFORMATION
your modem. If you’re using a different
communications software program, refer to its
manual.
Radio and Television Interference
This equipment generates and uses radio
frequency energy and if not installed and used
properly, in strict accordance with the
manufacturer’s instructions, may cause
interference to radio and television reception.
The modem has been tested and found to
comply with the limits for a Class B computing
device in accordance with the specifications in
Part 15 of FCC rules, which are designed to
provide reasonable protection against such
interference in a residential installation.
However, there is no guarantee that
interference will not occur in a particular
installation. If this device does cause
162
interference to radio or television reception,
which you can determine by monitoring
reception when the modem is installed and
when it is removed from the computer, try to
correct the problem with one or more of the
following measures:
• Re-orient the receiving antenna (for
televisions with antenna reception only) or
cable input device.
• Relocate the computer with respect to the
receiver.
• Relocate the computer and/or the receiver
so that they are on separate branch circuits.
If necessary, consult your dealer or an
experienced radio/television technician for
additional suggestions. You may find the
following booklet, prepared by the Federal
Communications Commission, helpful:
REGULATORY INFORMATION
How to Identify and Resolve RadioTV Interference Problems
Stock No. 004-000-0345-4
U.S. Government Printing Office
Washington, DC 20402
In accordance with Part 15 of the FCC rules,
the user is cautioned that any changes or
modifications to the equipment described in
this manual that are not expressly approved by
U.S. Robotics, Inc. could void the user’s
authority to operate the equipment.
For Canadian Modem Users
NOTICE: The Industry Canada (IC) label
identifies certified equipment. This certification
means the equipment meets certain
telecommunications network protective,
operational, and safety
requirements as prescribed in the appropriate
Terminal Equipment Technical Requirements
document(s). The Department does not
guarantee the equipment will operate to the
user’s satisfaction.
Before installing this equipment, users should
ensure that it is permissible to be connected to
the facilities of the local telecommunications
company. The equipment must also be
installed using an acceptable method of
connection. In some cases, the company’s
inside wiring associated with a single-line,
individual service may be extended by means
of a certified connector assembly (telephone
extension cord.) The customer should be
aware that compliance with the above
conditions may not prevent degradation of
service in some situations. Currently,
telecommunication companies do not allow
163
REGULATORY INFORMATION
users to connect their equipment to jacks
except in precise situations that are spelled out
in tariffing arrangements with those companies.
Repairs to certified equipment should be
coordinated by a representative designated by
the supplier. Any repairs or alterations made
by the user to this equipment, or equipment
malfunctions, may give the telecommunications
company cause to request the user to
disconnect the equipment.
For your own protection, make sure that the
electrical ground connections of the power
utility, telephone lines, and internal metallic
water pipe system, if present, are connected
together. This precaution may be particularly
important in rural areas.
CAUTION: Do NOT attempt to make such
connections yourself. Instead, contact an
164
electric inspection authority or electrician, as
appropriate.
NOTICE: The Ringer Equivalence Number
(REN) assigned to each terminal device
provides an indication of the maximum number
of terminals allowed to be connected to a
telephone interface. The termination on an
interface may consist of any combination of
devices subject only to the requirement that the
sum of the Ringer Equivalence Numbers of all
the devices does not exceed 5.
The Ringer Equivalence Number is located on
the bottom of the modem’s case (external
modems) or on the modem’s circuit board
(internal modems).
WARRANTY AND REPAIR SERVICE
CENTER:
REGULATORY INFORMATION
Keating Technologies
25 Royal Crest Court, Suite 200
Markham, ONT L3R 9X4
AVIS: L'étiquette de Industrie Canada
identifie le matériel homologué. Cette étiquette
certifie que le matériel est conforme à certaines
normes de protection, d'exploitation et de
sécurité des réseaux de télécommunications.
Le Ministére n’assure toutefois pas que le
matériel fonctionnera à la satisfaction de
l’utilisateur.
Avant d’installer ce matériel, l’utilisateur doit
s’assurer qu’il est permis de le raccorder aux
installations de l’enterprise locale de
télécommunication. Le matériel doit également
être installé en suivant une méthode acceptée
de raccordment. L’abonné ne doit pas oublier
qu’il est possible que la conformité aux
conditions énoncées ci-dessus n’empêche pas
le dégradation du service dans certaines
situations.
Les réparations de matériel homologué doivent
être effectuées par un centre d’entretien
canadien autorisé désigné par le fournissuer.
La compagnie de télécommunications peut
demander à l’utilasateur de débrancher un
appareil à la suite de réparations ou de
modifications effectuées par l’utilasateur ou à
cause de mauvais fonctionnement.
Pour sa propre protection, l’utilisateur doit
s’assurer que tous les fils de mise à la terre de
la source d’énergie électrique, des lignes
téléphoniques et des canalisations d’eau
métalliques, s’il y en a, sont raccordé
ensemble. Cette précaution est
particulièrement importante dans les régions
rurales.
165
REGULATORY INFORMATION
Avertissment: L’utilisateur ne doit pas tenter
de faire ces raccordements luimême; il doit
avoir recours à un service d’inspection des
installations électriques, ou á un électricien,
selon le cas.
Centre de guarantie et de service après-vente:
NOTICE: L’Indice d’Equivalence de la
Sonnerie (IES) de chaque appareil donne une
indication du nombre maximal de terminaux qui
peut être branché à l’interface téléphonique.
La termination d’une interface peut consister
de n’importe qu’elle combinaison d’appareils
sur le réseau, seulement si la somme des IES
de tous les appareils n’excède pas 5.
Limited Warranty
U.S. Robotics Access Corp. warrants to
the original end-user purchaser that this
product will be free from defects in
materials and workmanship for a period of
five years from the date of purchase. During
the limited warranty period, and upon proof
of purchase, the product will be repaired or
replaced (with the same or a similar model,
which may be a refurbished model) at U.S.
Robotics’ option, without charge for either
parts or labor. This limited warranty shall
not apply if the product is modified,
tampered with, misused, or subjected to
L'Indice d'Equivalence de la Sonnerie (IES)
est situé au revers du modem (modems
externes), ou sur le circuit imprimé (modems
internes).
166
Keating Technologies
25 Royal Crest Court, Suite 200
Markham, ONT L3R 9X4
REGULATORY INFORMATION
abnormal working conditions (including, but
not limited to, lightning and water damage).
THIS LIMITED WARRANTY DOES
NOT GUARANTEE YOU
UNINTERRUPTED SERVICE. REPAIR
OR REPLACEMENT AS PROVIDED
UNDER THIS LIMITED WARRANTY
IS THE EXCLUSIVE REMEDY OF THE
PURCHASER. THIS LIMITED
WARRANTY IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING, BUT NOT
LIMITED TO, ANY IMPLIED
WARRANTY OF
MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE OR
PURPOSE. U.S. ROBOTICS SHALL IN
NO EVENT BE LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL,
PUNITIVE, OR CONSEQUENTIAL
DAMAGES OF ANY KIND OR
CHARACTER, INCLUDING,
WITHOUT LIMITATION, LOSS OF
REVENUE OR PROFITS, FAILURE TO
REALIZE SAVINGS OR OTHER
BENEFITS, LOSS OF DATA OR USE,
DAMAGE TO EQUIPMENT, AND
CLAIMS AGAINST THE PURCHASER
BY ANY THIRD PERSON, EVEN IF
U.S. ROBOTICS HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH
DAMAGES.
This limited warranty gives you specific
legal rights. You may have others, which
vary from state to state. Some states do not
allow limitations on duration of an implied
warranty, or the exclusion or limitation of
incidental or consequential damages, so the
167
REGULATORY INFORMATION
above exclusion or limitation may not apply
to you.
To obtain service under this limited warranty,
contact the U.S. Robotics Technical Support
Department at 847-982-5151 or by mail at
3Com, 7770 N. Frontage Road, Attn.:
Technical Support Dept., Skokie, Illinois
60077-2690. You will be given a Service
Repair Order (“SRO”) number to help U.S.
Robotics keep track of your limited warranty
request. Once you have received your SRO
number, take or send the product, postage
prepaid and insured, to 3Com, Attn: RMA,
[your SRO#], 6201 W. Oakton, East Dock,
Morton Grove, IL 60053. Pack the modem in
a strong corrugated cardboard box with plenty
of packing material. DO NOT send the
modem back in its original box. DO NOT
send anything but the modem (do not send
168
back the power supply, CD-ROM,
documentation, etc.). If possible, send the
modem via a courier capable of tracking the
progress of the shipment. Include proof of the
date of purchase. IMPORTANT: If you send
your unit, pack it securely, and be sure that
your SRO number is visible on the outside of
the package.
Index
A
America Online, U.S. Robotics online support
and, 108-109
American Standard Code for Information
Interchange. See ASCII
analog loopback, 113
analog phone lines, vs. digital, 18, 26, 33, 37
analog signals, 113
answer mode, 113
AOL. See America Online, U.S. Robotics
online support and
ARQ. See Automatic Repeat reQuest
ASCII (American Standard Code for
Information
Interchange), 113
asynchronous transmission, 113
AT commands, 125-139
auto answer, 114
auto answer (AA) light, 124
auto dial, 114
Automatic Repeat reQuest (ARQ) light, 124
B
baud rate, 114
BBS, U.S. Robotics, 105-106
binary digit, 114
bit rate, 114
bits per second (bps), 114
buffer, 114
byte, 114
169
Index
C
carrier, 115
carrier detect (CD) light, 124
character, 115
characters per second (cps), 115
low, errors and, 103
class 1 and 2.0 faxing standards, 115
clear to send (CS) light, 124
COM ports
conflicts with IRQs, 99-100
and Plug and play installations, 6, 2122
COM drivers, outdated, 104
command summary, 125-139
communications software
and flow control, 61-62
installing other fax/data software, 4344
170
installing RapidComm, 43-58
UART, 62
CompuServe, U.S. Robotics online support
and, 108
Connections CD-ROM
Modem Station, 63-86
Modem Update Wizard, 87-98
software installation, 43-58
CRC. See Cyclic Redundancy Checking
Cyclic Redundancy Checking (CRC), 103,
115
Index
D
data compression table, 115
data mode, 116
data terminal (terminating) equipment (DTE),
116
data terminal ready (TR) light, 124
default settings, 116
detect phase, 116
dictionary, 116
digital loopback, 116
digital signals, 116
DIP switches, 140-141
DTE. See data terminal (terminating)
equipment
duplex, 116
E
EIA. See Electronic Industries Association
Electronic Industries Association (EIA), 117
error control, 117
disabling, 102
error control/ (ARQ/) light, 124
external modems
and faxing, 58-60
hardware installation
Windows 3.x, 31-33
Windows 95, 35-41
and serial cable, 31-32, 35-36
F
facsimile (fax), 117
fax mode, 117
fax operations (FAX) light, 124
faxing with RapidComm, 58-60
flow control, 61-62, 102, 117
frame, 117
171
Index
front panel lights, summary, 124
FTP, U.S. Robotics online support and, 108
full duplex, 117
G
glossary, 113-122
H
half duplex, 117
hertz (Hz), 118
and Plug and Play installation, 6, 2122
International Telegraph and Telephone
Consultative Committee (ITU-T), 118
IRQs, 5-14
conflicts, 99-100
ISA expansion slots, 16, 24
ITU-T. See International Telegraph and
Telephone Consultative Committee
J
jumper pins, 6, 13-14, 22
I
internal modems
faxing with, 58-60
hardware installation
Windows 3.x, 5-20
Windows 95, 21-29
172
L
LAPM. See Link Access Procedure for
Modems
Index
Link Access Procedure for Modems (LAPM),
118
local echo, 118
turning off, 101
M
Microcom Networking Protocol (MNP), 118
MNP. See Microcom Networking Protocol
Modem Station, 63-86
installing, 63-65
using, 66-86
Modem Update Wizard, 87-98
installing, 87-91
using, 92-98
N
nonvolatile memory (NVRAM), 118
NVRAM. See nonvolatile memory
O
off/on hook, 118
online fallback/fall forward, 119
online help resources, 105-109
originate mode, 119
P
parity, 102, 119
Plug and Play installation, 6, 21-22
protocol, 119
R
RAM (random access memory), 119
random access memory. See RAM
RapidComm
faxing with, 58-60
173
Index
installing, 43-58
troubleshooting, 110-111
read only memory (ROM), 120
received data (RD) light, 124
remote digital loopback, 119
remote echo, 119
S
s-registers, 142-152
send data (SD) light, 124
serial cable, purchasing, 31-32, 35-36
serial interface, 153-154
pin definitions, 154
serial number, modem, 15, 23
serial (COM) ports, 5-14, 21-22, 32, 36
conflicts, 99-100
serial transmission, 118
shunts, 13-14, 22
174
start/stop bits, 102, 105, 120
T
Technical Reference Guide, downloading,
106-108
terminal mode, 105, 120
Terminate and Stay Resident programs, errors
and, 103-104
throughput, 120
troubleshooting, 99-104
RapidComm, 110-111
TSR. See Terminate and Stay Resident
programs
U
UART, 62
upgrading/updating modems, 87-98
Index
U.S. Robotics
BBS, 105-106
online help resources, 105-109
Technical Reference Guide,
downloading,
106-108
Technical Support Hotline, 109
xon/xoff, 122
Y
Ymodem, 122
Ymodem G, 122
V
Z
V.17 fax transmissions, errors and, 104
Zmodem, 122
W
World Wide Web (WWW), U.S. Robotics
online support and, 108
X
x2 technology, 2-3
Xmodem, 122
175